A tool designed to estimate the required capacity of a recreational vehicle’s potable water reservoir is an essential resource for prospective RV owners and seasoned travelers alike. These calculators typically use variables such as the number of occupants, trip duration, and daily water consumption habits to produce a recommended tank volume. For example, a family of four planning a week-long camping trip will have different water needs than a solo traveler embarking on a weekend getaway.
Accurately determining the ideal reservoir volume offers several advantages. It helps prevent the inconvenience of prematurely running out of water, especially in remote locations. Furthermore, it avoids the unnecessary expense and weight associated with an excessively large tank, which can negatively impact fuel efficiency and maneuverability. The development of these estimating tools has evolved from manual calculations based on general averages to sophisticated online platforms that incorporate user-specific inputs for more precise predictions.
The subsequent sections will delve into the factors influencing water consumption in recreational vehicles, discuss various types of potable water reservoirs, and explore the functionalities of different estimation tools available to assist in the selection of an appropriately sized reservoir.
1. Occupant water needs
Potable water reservoir capacity determination is fundamentally linked to the water requirements of the recreational vehicle occupants. Occupant needs dictate the minimum reservoir volume necessary to sustain comfortable and sanitary living conditions during travel. The estimation tools are designed to translate these individual consumption habits into a practical tank size recommendation. Factors influencing individual water usage include frequency of showering, cooking habits, toilet flushing practices, and dishwashing methods. The correlation is straightforward: higher aggregate demand necessitates larger reservoir dimensions.
For example, a recreational vehicle occupied by a single individual who practices water conservation techniques will exhibit demonstrably lower water consumption than a vehicle with multiple occupants who frequently shower and prepare elaborate meals. The estimation tools incorporate these varying demands through user-defined parameters. Failure to accurately estimate occupant needs results in either frequent water replenishment, causing inconvenience, or the installation of an unnecessarily large tank, reducing cargo capacity and fuel economy. This connection underscores the importance of honest and accurate input into the estimator.
In summation, occupant needs constitute a primary driver in determining optimal reservoir capacity. These needs are incorporated into calculation tools, which transform consumption patterns into volume requirements. A proper understanding of individual usage patterns is crucial to inform the calculations, preventing water scarcity or the burdens of an oversized reservoir. By quantifying the water demands of its occupants, the accuracy and practicality of an appropriate sizing decision are significantly improved.
2. Trip duration impact
Trip duration directly influences the required potable water reservoir capacity within a recreational vehicle. A longer excursion necessitates a proportionately larger water supply to meet the ongoing needs of the occupants. The tools for reservoir capacity calculations fundamentally incorporate trip length as a primary input variable. The relationship is linear: doubling the duration, assuming consistent daily consumption, roughly doubles the necessary tank volume. A weekend trip may only require a small tank, while a cross-country journey of several weeks demands a significantly more substantial reservoir.
Failure to adequately account for trip length in volume estimations results in predictable consequences. Inadequate reservoir sizing forces frequent water refills, potentially disrupting travel schedules, especially in regions with limited access to potable water sources. Conversely, excessively large reservoirs contribute to increased vehicle weight, diminishing fuel efficiency and potentially exceeding axle weight ratings. Accurately assessing trip length allows for a more efficient and practical compromise between carrying capacity and supply sufficiency. For example, a retiree embarking on a multi-month exploration of national parks requires a substantially larger tank than a family utilizing a camper for weekend getaways.
In summary, trip duration is a critical component in the process of determining the appropriate size for a recreational vehicle’s potable water reservoir. The calculations are highly sensitive to the duration of travel. Accurate anticipation of the trip length promotes a balance between self-sufficiency and optimized vehicle performance. Ignoring this factor can introduce complications such as supply shortages or diminished fuel economy, reducing overall travel efficiency and enjoyment.
3. Tank volume estimation
The precise calculation of potable water reservoir capacity constitutes the core function of a recreational vehicle reservoir sizing tool. These tools serve to translate user-defined parameters, such as number of occupants and trip duration, into a recommended reservoir volume. This estimation process is not arbitrary; it relies on established data regarding average daily water consumption for various activities. An accurate estimation is paramount to avoid both premature water depletion and the inefficiencies associated with an oversized reservoir. The value of these tools lies in their ability to provide data-driven recommendations, mitigating the risk of subjective or inaccurate assessments.
For instance, an estimation tool might project that a family of four undertaking a seven-day off-grid camping trip will require a minimum of 140 gallons, assuming an average daily consumption of five gallons per person. Without such a projection, the family might underestimate their needs, leading to rationing or the inconvenience of early departure. Conversely, overestimation could result in the installation of a significantly larger tank than necessary, increasing vehicle weight and reducing fuel economy. The tool acts as a decision support system, providing tangible data to inform the choice between various reservoir sizes.
In summary, the accuracy of reservoir volume estimation is directly proportional to the utility of tools designed for this purpose. These estimations serve as the foundation for informed decisions regarding reservoir selection, balancing the conflicting demands of self-sufficiency and vehicle performance. This proactive approach minimizes the likelihood of water shortages, reduces fuel consumption, and contributes to a more comfortable and sustainable recreational vehicle experience. The ultimate result is a tank size tailored to specific needs rather than based on guesswork.
4. Calculator input factors
Effective utilization of any tool for estimating recreational vehicle potable water reservoir capacity hinges upon the accurate and comprehensive input of relevant factors. These inputs directly influence the calculated tank volume and ultimately determine the adequacy of the selected reservoir for a given travel scenario.
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Number of Occupants
This parameter represents the total number of individuals who will be drawing water from the reservoir. The input necessitates consideration of all persons, regardless of age or water consumption habits. For instance, a family of four will typically exhibit higher overall water usage than a couple, thus requiring a larger projected volume from the estimator. Failure to accurately input the number of occupants will invariably lead to an underestimation or overestimation of required reservoir capacity, affecting travel convenience and resource management.
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Trip Duration (in Days)
This numerical value specifies the length of the planned excursion. A longer trip implies a greater cumulative water demand. The estimation tool multiplies daily consumption rates by this duration to project total water requirements. For example, a seven-day trip will require twice the reservoir volume of a three-and-a-half-day trip, assuming all other factors remain constant. An incorrect input regarding trip duration introduces a scaling error into the volume estimation, leading to potential water shortages or the unnecessary burden of an oversized tank.
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Average Daily Water Consumption per Person (in Gallons)
This variable attempts to quantify the individual water usage habits of each occupant. This number is influenced by showering frequency, cooking practices, and toilet usage, among other factors. A high value reflects a less conservative approach to water consumption. For example, individuals who take frequent showers and prepare elaborate meals will exhibit a higher daily consumption rate than those who conserve water through shorter showers and simpler meal preparations. Inaccurate estimation of individual water usage can result in discrepancies between projected and actual water demand, impacting resource availability during travel.
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Type of Water Source Availability (Hookups vs. Boondocking)
This factor considers the frequency and availability of external water sources throughout the journey. If the recreational vehicle will primarily be connected to external water hookups at campgrounds, a smaller tank might suffice, primarily serving as a buffer. However, if the trip involves extensive boondocking (dry camping without external connections), a larger tank is necessary to ensure self-sufficiency. This parameter allows the estimation tool to adjust the recommended tank size based on anticipated reliance on internal versus external water supplies. A failure to account for water source availability can lead to an over-reliance on limited tank capacity or an underestimation of self-sufficiency requirements.
In conclusion, the precision and relevance of recreational vehicle potable water reservoir capacity estimates are intrinsically linked to the accuracy and completeness of the input parameters. These factors, including number of occupants, trip duration, individual consumption rates, and access to external water sources, collectively shape the overall demand profile. By providing thoughtful and realistic inputs, users can leverage these tools to make informed decisions, ensuring a balance between water self-sufficiency and practical resource management throughout their travels.
5. Weight considerations
The relationship between potable water reservoir capacity and vehicle weight is a significant consideration when using capacity estimation tools. Water possesses a considerable mass, approximately 8.34 pounds per gallon. Consequently, increasing reservoir volume directly translates to increased gross vehicle weight. The estimations must factor in these weight implications to prevent exceeding vehicle load capacity ratings. For example, a 100-gallon tank adds over 800 pounds to the recreational vehicle’s weight, impacting handling, braking distance, and overall stability. Accurate calculations using the tools become essential to maintain safety and optimize performance.
Exceeding the Gross Vehicle Weight Rating (GVWR) has several adverse effects. It increases stress on the vehicle’s suspension, tires, and braking system, potentially leading to premature component failure. Furthermore, it diminishes fuel efficiency and can compromise handling, especially in emergency maneuvers. Weight consideration input in the sizing tool should also include the weight of the tank material itself, as different materials (e.g., polyethylene, stainless steel) possess varying densities. The tool must facilitate a comprehensive assessment of the weight impact associated with various reservoir volume options. For instance, those planning extensive off-road travel must pay particular attention to weight distribution to maintain vehicle balance and prevent potential rollovers.
In summation, weight is a pivotal consideration in determining potable water reservoir volume, and its inclusion in the calculations is paramount. An accurate estimate should align reservoir capacity with safe operating parameters, adhering to GVWR limitations. Employing the estimation tools, users can balance the desire for extended water autonomy with the imperative of maintaining a safe, efficient, and reliable recreational vehicle. Neglecting weight implications introduces significant safety risks and potentially compromises vehicle longevity.
6. Fuel efficiency implications
The selection of an appropriately sized potable water reservoir for a recreational vehicle directly influences its fuel consumption. An oversized reservoir carries unnecessary weight, contributing to diminished fuel economy and increased operational costs. Therefore, the estimation tool must accurately balance water storage needs with fuel efficiency considerations.
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Impact of Weight on Rolling Resistance
Increased vehicle weight resulting from a larger water reservoir raises rolling resistance. This heightened resistance requires the engine to exert more force to maintain speed, resulting in greater fuel consumption. For example, a recreational vehicle carrying an additional 300 pounds of water will experience a measurable decrease in miles per gallon compared to the same vehicle with an empty reservoir. The estimation process must account for this incremental increase in rolling resistance to provide a realistic assessment of overall fuel efficiency.
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Aerodynamic Drag and Fuel Consumption
While water tank size does not directly alter a vehicle’s aerodynamic profile, the increased weight indirectly affects aerodynamic performance. A heavier vehicle experiences greater suspension compression, potentially altering the vehicle’s ride height and therefore its aerodynamic drag. Furthermore, the vehicle’s engine works harder to overcome both rolling resistance and aerodynamic drag. The estimation tool, while not directly calculating aerodynamic changes, acknowledges the compounded impact of added weight on overall fuel economy. This interplay necessitates careful consideration of the total weight implications during the tank selection process.
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Engine Load and Fuel Burn Rate
The volume of water carried in the reservoir directly influences the engine load. An increased engine load necessitates a higher fuel burn rate to maintain a consistent speed, especially during inclines or acceleration. Consider a scenario where a recreational vehicle is climbing a steep grade. A full water reservoir significantly increases the engine’s workload compared to an empty reservoir, resulting in a substantial increase in fuel consumption over that segment of the journey. The estimation tool indirectly addresses this by providing a calculated reservoir volume based on need, thereby minimizing the potential for excessive engine load and subsequent fuel wastage.
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Trade-offs Between Capacity and Efficiency
Choosing a reservoir involves a trade-off between water carrying capacity and fuel efficiency. A larger tank provides greater self-sufficiency, particularly during extended off-grid camping trips. However, this comes at the cost of reduced fuel economy. Conversely, a smaller tank maximizes fuel efficiency but necessitates more frequent water refills, potentially limiting travel flexibility. The estimation tool assists in finding an optimal balance between these competing priorities by accurately assessing water needs and allowing users to evaluate the fuel efficiency implications of various tank size options. This decision-making process allows for a more informed selection that aligns with specific travel requirements and resource management goals.
The estimations emphasize the link between potable water reservoir capacity and fuel consumption, prompting users to carefully evaluate their water requirements. By balancing the need for self-sufficiency with the imperative of fuel efficiency, one can make informed decisions that promote both environmental responsibility and cost-effective recreational vehicle travel. The correct size is based on actual water use, with some buffer for emergency or unexpected delays.
7. Water source availability
The accessibility of potable water sources is a critical parameter in determining the optimal potable water reservoir volume for a recreational vehicle. Frequent access to external water connections diminishes the reliance on internal reservoir capacity, whereas extended periods away from such sources necessitate a larger on-board supply. The estimation tool integrates this variable to ensure accurate and practical sizing recommendations.
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Campground Hookups and Reduced Tank Size
Campgrounds frequently provide potable water connections, allowing for direct access to water without depleting the reservoir. Recreational vehicles that primarily utilize campgrounds with hookups can often operate with smaller tanks, as the reservoir primarily serves as a buffer. For instance, a weekend trip to a campground with full hookups might only require a 20-gallon reservoir, sufficient for sanitation and brief periods away from the connection. This scenario reduces the need for a large, heavy tank, improving fuel efficiency and maneuverability. Overestimating capacity in this case leads to unnecessary weight and expense.
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Boondocking/Dry Camping and Increased Tank Requirements
Boondocking, or dry camping, involves self-sufficient operation without external utility connections. In such situations, the reservoir constitutes the sole source of potable water. Extended boondocking trips demand significantly larger tank volumes to meet the needs of all occupants. A week-long boondocking excursion for a family of four might necessitate a 100-gallon or larger reservoir, depending on individual consumption habits. Failure to accurately estimate needs in this context can lead to water shortages, requiring premature departure or the implementation of stringent conservation measures.
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Intermittent Access and Strategic Planning
Travel itineraries often involve a combination of campground stays and boondocking periods. In these scenarios, careful planning is essential to determine the appropriate reservoir capacity. The estimation tool assists in strategic planning by allowing users to model different scenarios, factoring in the length of time spent at locations with and without hookups. For example, a two-week trip with seven days of campground stays and seven days of boondocking requires a reservoir capacity that can sustain the dry camping period. Strategic planning, aided by the estimation tool, minimizes the risk of water shortages while preventing the unnecessary burden of an oversized reservoir.
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Water Source Quality and Filtration Needs
Even when water sources are available, the quality may be questionable, and filtration will be necessary. Low quality water reduces the speed to refill the RV water tank and needs more calculation to determine appropriate time management to complete the water refills . This can influence the RV owners trip management, whether it’s a trip to a camping area or not. So, It’s important to consider about the need of water filter
In summary, water source availability is a primary determinant in selecting the appropriate potable water reservoir capacity for a recreational vehicle. Regular campground stays with hookups permit the use of smaller tanks, whereas extended boondocking necessitates larger volumes. The estimation tool integrates these considerations, enabling informed decisions that balance self-sufficiency with practical resource management. Accurate assessment of anticipated water source availability minimizes the risk of water shortages and ensures optimal fuel efficiency.
8. Usage pattern variance
The concept of usage pattern variance significantly impacts the effective application of reservoir sizing tools in recreational vehicles. These tools rely on assumptions regarding daily water consumption, yet actual water use fluctuates based on numerous factors. An accurate understanding of these variations is crucial for selecting a reservoir that adequately meets the demands of diverse travel scenarios.
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Seasonal Variations in Water Consumption
Water usage patterns vary with the seasons. Warmer climates typically lead to increased showering frequency and greater water consumption for hydration, necessitating a larger reservoir capacity. Conversely, cooler climates may reduce the demand for showers, potentially allowing for a smaller reservoir. An estimating tool should ideally incorporate seasonal adjustments to account for these fluctuating needs. For example, a retired couple spending winters in Arizona will require a larger reservoir than if they remain in a cooler northern climate.
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Variations Based on Activity Level
Water usage is influenced by the physical activity level of the occupants. Active individuals engaging in hiking, biking, or other outdoor pursuits require more water for hydration and hygiene. Conversely, those spending more time indoors with less physical exertion will exhibit lower consumption rates. The estimation tool must recognize that a group of avid hikers needs a higher reservoir capacity than a group primarily engaged in sedentary activities. This factor should be incorporated to provide a more personalized sizing recommendation.
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Variations Due to Appliance Usage
The presence and usage of water-intensive appliances, such as washing machines or dishwashers, significantly impact reservoir depletion rates. Frequent use of these appliances substantially increases overall water consumption, mandating a larger reservoir volume. An estimation tool should allow users to specify the presence and anticipated frequency of appliance usage to accurately project water demand. For example, a recreational vehicle equipped with a washing machine and dishwasher will require a significantly larger reservoir than one without these amenities.
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Variations Related to Conservation Practices
The degree to which occupants actively conserve water directly influences reservoir longevity. Individuals practicing water-saving techniques, such as taking shorter showers, using low-flow fixtures, and minimizing water waste, can significantly extend the time between refills. The estimation tool should provide options for adjusting consumption rates based on anticipated conservation practices. For instance, a family committed to water conservation can potentially operate with a smaller reservoir than a similar family that is less mindful of their water usage.
In conclusion, the effectiveness of sizing tools is contingent upon recognizing and accommodating the inherent variations in water usage patterns. By incorporating factors such as seasonal changes, activity levels, appliance usage, and conservation practices, the estimation tool provides a more accurate and personalized recommendation. This refined approach ensures that the selected reservoir volume aligns with the specific needs and habits of the recreational vehicle occupants, preventing water shortages and optimizing resource management during travel.
9. Storage space limits
Potable water reservoir volume is fundamentally constrained by the available storage space within a recreational vehicle. The physical dimensions allocated for the reservoir dictate the maximum permissible size, thereby directly influencing the outcome derived from any estimation tool. Space limitations often necessitate a compromise between desired water capacity and practical installation constraints. For instance, a compact travel trailer may only accommodate a reservoir of 30 gallons due to chassis design, regardless of calculations suggesting a greater need based on occupant usage. This restriction underscores the importance of considering physical space during the assessment of water requirements.
The relationship between reservoir size and storage space extends beyond mere physical dimensions. It encompasses accessibility for maintenance, including cleaning and winterization. Reservoirs positioned in difficult-to-reach locations may deter routine maintenance, compromising water quality and potentially leading to tank damage. Examples include reservoirs situated beneath low-clearance vehicles or those obstructed by complex plumbing systems. The selection tool should, therefore, incorporate an evaluation of accessibility alongside volume calculations. A reservoir that is easily drained, sanitized, and inspected contributes to both water safety and prolonged equipment lifespan.
Storage space constraints impose a practical limit on the application of volume estimations. The resulting selection must reconcile calculated needs with physical realities, potentially necessitating adjustments to travel plans, water conservation practices, or the selection of alternative recreational vehicle models. Failing to account for storage limitations results in an impractical or unachievable reservoir selection. Therefore, the estimation process should commence with a thorough assessment of available space, ensuring that the proposed reservoir is both volumetrically adequate and physically compatible with the recreational vehicles design.
Frequently Asked Questions
The following addresses frequently encountered inquiries regarding the estimation of potable water reservoir capacity for recreational vehicles. These questions aim to clarify common points of confusion and provide objective guidance for making informed decisions.
Question 1: What is the typical daily water consumption for an individual in a recreational vehicle?
Average daily water consumption varies significantly based on individual habits and activities. However, a general estimate is 5 gallons per person per day for basic sanitation, cooking, and minimal showering. This figure can fluctuate depending on conservation practices and the availability of water-saving appliances.
Question 2: How does trip duration influence the recommended reservoir size?
Trip duration directly impacts the necessary reservoir volume. A longer trip necessitates a larger water supply to meet ongoing needs. Reservoir sizing tools incorporate trip length as a primary input variable, multiplying the daily consumption rate by the duration of the planned excursion.
Question 3: Does exceeding the Gross Vehicle Weight Rating (GVWR) impact reservoir capacity selection?
Yes, exceeding the GVWR introduces safety risks and compromises vehicle performance. Water possesses considerable mass, and increasing reservoir volume directly translates to increased vehicle weight. Reservoir capacity selection must consider GVWR limitations to maintain safe operating parameters.
Question 4: How does the availability of campground hookups affect reservoir size selection?
Frequent access to campground water hookups diminishes the reliance on internal reservoir capacity. Recreational vehicles that primarily utilize campgrounds with hookups can often operate with smaller tanks, as the reservoir primarily serves as a buffer. However, extended boondocking necessitates larger reservoir volumes.
Question 5: Are there seasonal variations in water usage that should be considered?
Yes, water usage patterns tend to fluctuate seasonally. Warmer climates typically lead to increased showering frequency and greater water consumption for hydration. Estimating tools should ideally incorporate seasonal adjustments to account for these fluctuating needs.
Question 6: Do water-saving fixtures and practices significantly impact the required reservoir size?
Yes, implementing water-saving fixtures, such as low-flow showerheads and toilets, and adopting conservation practices, such as shorter showers and careful water usage, can substantially reduce overall demand. These measures allow for a smaller reservoir capacity without compromising self-sufficiency.
Accurate water reservoir estimation involves careful consideration of numerous variables. Tools are available to facilitate more precise evaluation, mitigating risk and promoting informed resource management.
The next section will provide concluding remarks about the importance of tools for calculating the water reservoir size.
Tips for Effective Recreational Vehicle Water Reservoir Capacity Estimation
This section presents actionable guidance to optimize the accuracy and utility of tools for recreational vehicle water reservoir capacity estimation, mitigating potential errors and enhancing resource management.
Tip 1: Accurately Assess Occupant Needs: The foundation of effective estimation lies in precisely gauging the water consumption patterns of all individuals traveling in the recreational vehicle. Factors include showering frequency, cooking habits, and toilet usage. Underestimation results in premature water depletion, while overestimation adds unnecessary weight.
Tip 2: Account for Trip Duration: Extend the planned duration if there is any chance your itinerary will last. Longer trips will increase your water needs. Tools use the trip’s length to determine the right tank capacity, which can result to water shortage if not followed precisely.
Tip 3: Prioritize Water Source Availability: Consider the accessibility of external water sources during the trip. Frequent stays at campgrounds with hookups allow for a smaller reservoir. Extended boondocking necessitates a larger supply. The estimator should factor in time spent at each location to provide a tailored recommendation.
Tip 4: Estimate Carefully the Weight: When estimating the water tank, carefully determine the weight. An accurate estimate helps align reservoir capacity with safe operating parameters, adhering to GVWR limitations. Neglecting weight can introduce significant safety risks.
Tip 5: Consider Seasonal Impacts: Take the season into account when estimating the water in the tank. To accurately account for the fluctuating needs, estimations must have seasonal adjustments. As an example, couples spending time during winter may need more water compared to cooler northern climate.
By diligently incorporating these tips, users can maximize the effectiveness of recreational vehicle water reservoir capacity estimation tools, ensuring an optimal balance between self-sufficiency, fuel efficiency, and safe operating parameters.
In the following section, we will conclude the article with final thoughts and considerations.
Conclusion
This exploration of the tool’s purpose has highlighted the criticality of accurate potable water reservoir sizing for recreational vehicles. Key considerations encompass occupant needs, trip duration, water source accessibility, and storage space limitations. Employing a reliable “rv water tank size calculator” is not merely a convenience; it is an essential step in responsible recreational vehicle operation.
The ability to determine optimal reservoir capacity promotes resource conservation, enhances safety, and contributes to a more enjoyable travel experience. Neglecting this crucial step invites potential hardships and inefficiencies. Therefore, prospective and current recreational vehicle owners are strongly encouraged to leverage these estimating tools, ensuring a judicious balance between self-sufficiency and operational practicality. The pursuit of well-informed decisions will ultimately result in more sustainable and fulfilling journeys.
