Storing pool water during repair or maintenance is a critical process that ensures efficiency, cost savings, and environmental responsibility. Whether you’re addressing a leak, resurfacing the pool, or performing major equipment repair, proper water storage can make a world of difference. However, many pool owners overlook the importance of this step, leading to unnecessary water wastage, expensive refills, and even damage to surrounding property. This guide will walk you through the essential steps, best practices, and equipment needed to successfully store your pool water during a repair project while maintaining water quality and protecting your investment.
Why Storing Pool Water During Repair Is Important
Before diving into the how-tos, it’s crucial to understand the benefits and necessity of storing pool water when performing repairs or maintenance. The primary reasons include:
- Water conservation – Many regions face water scarcity and impose restrictions. Reusing your pool water reduces strain on municipal supplies.
- Cost efficiency – Refilling a pool with fresh water can be expensive, especially with added chemical treatments required afterward.
- Time savings – Retaining existing water reduces the time needed to rebalance chemicals and recondition the pool after the repair.
- Environmental responsibility – Treated pool water can harm local ecosystems if drained improperly. Storing allows for proper disposal or reuse.
By storing water properly, you ensure a smoother, more sustainable process that aligns with modern environmental standards and homeowner economics.
Understanding When You Need to Store Pool Water
Not every maintenance task requires emptying or storing pool water. However, certain situations do demand it:
Major Drainage Situations
- Structural repairs – This includes fixing cracks in the pool shell, replacing tiles, or repairing the main drain.
- Renovation projects – Resurfacing the pool, updating equipment, or modifying the layout may require complete or partial draining.
- Winterization or seasonal preparation – In colder climates, pools may need to be partially emptied to prevent freeze damage.
Partial Drains for Repairs
Some repairs allow for partial draining, which reduces the volume of water needing storage. This includes:
- Fixing pool skimmers or return jets
- Replacing underwater lights
- Repairing pool pumps or filtration systems
Before proceeding, consult with your pool repair professional to determine the exact amount of water to be removed and whether full or partial storage is needed.
Choosing the Right Water Storage Solution
There are several options for storing pool water during repairs, each with unique advantages and limitations. The best choice depends on the volume of water, duration of storage, available space, and local regulations.
1. Water Bladders and Tote Tanks
These durable, flexible containers are specifically designed for temporary water storage and transport. They can hold thousands of gallons and are easy to deploy.
- Pros: Portable, weather-resistant, and space-efficient when empty.
- Cons: Can be expensive for large volumes; require careful placement on stable ground.
2. Above-Ground Storage Tanks
Rigid water tanks made from polyethylene or metal can be ideal for medium- to long-term storage of large quantities of filtered water.
- Pros: Durable, reusable, less evaporation loss.
- Cons: Larger footprint, may require permits in some areas.
3. On-Site Reservoirs and Rainwater Tanks
If you have a designated rainwater catchment system or a dedicated water reservoir, these can serve dual purposes during a pool shutdown.
- Pros: Environmentally friendly, reduces water bill.
- Cons: May not be large enough to accommodate full pool volume without modification.
4. Municipal or Commercial Water Hauling Services
If on-site storage isn’t feasible, hiring a licensed water hauling or storage company is a practical alternative.
- Pros: Saves space and effort; professionally managed.
- Cons: Can be costly; requires coordination and advance booking.
When making a choice, consider your property size, budget, and the length of the repair project. For most residential pool owners, a combination of on-site bladders and rainwater storage tanks provides the best balance of cost and convenience.
Step-by-Step Guide to Storing Pool Water Safely
Proper planning and execution are necessary for the successful storage and reuse of your pool water. The following steps outline a comprehensive approach:
Step 1: Test and Balance the Water Before Storage
Before draining, test your water’s chemistry using a reliable pool testing kit. Properly balanced water (pH between 7.2–7.6, total alkalinity 80–120 ppm, and chlorine around 1–3 ppm) prevents algae growth and corrosion during storage.
Step 2: Choose a Suitable Location for Storage Containers
Select a level, shaded area that is clean and distant from foot traffic or vehicular movement. Ensure ground surface can support the weight of the filled containers without sinking or causing damage.
Step 3: Use the Right Pump and Hose Setup
Employ a high-quality submersible or centrifugal pump to remove water from the pool. Use food-grade or durable PVC hose systems to transfer water to your storage units, ensuring minimal contamination and waste.
- Connect the pump securely and run the hose to the storage unit.
- Start pumping at a low pressure to prevent overflow or hose disconnection.
Step 4: Protect Stored Water from Contamination
Once water is in storage, it must stay clean and stable. Use covers or lids for all storage containers to prevent debris, bugs, or sunlight exposure which encourages algae growth.
You might also consider using algicide or a clarifier in storage tanks, especially if leaving the water for more than a week.
Step 5: Monitor and Rebalance Water Chemistry as Needed
Even in storage, water chemistry can shift. Covering, aerating, and testing your stored water once a week ensures it remains usable when it’s time to refill the pool.
Step 6: Clean and Maintain Storage Equipment
Ensure the storage tanks and all related equipment are thoroughly cleaned once the project is complete. Regular cleanings extend their life and minimize cross-contamination risks in future uses.
Water Volume: How Much Do You Need to Store?
Understanding the volume of water in your pool is critical for safe storage. Pool water volume varies based on the shape and depth:
Calculating Pool Volume
For in-ground pools, use the formula:
Volume (gallons) = Length (ft) × Width (ft) × Average Depth (ft) × 7.5
Example:
- A 20’ x 40’ rectangular pool with an average depth of 5 feet:
20 × 40 × 5 × 7.5 = 30,000 gallons
Common Water Storage Volumes
| Pool Type | Average Water Volume | Suggested Storage Capacity |
|---|---|---|
| In-ground rectangular | 20,000–30,000 gallons | Bladders/Tanks: 15,000–25,000 gal |
| In-ground oval | 15,000–25,000 gallons | Bladders or dual tanks |
| On-ground or smaller pools | 5,000–10,000 gallons | Large rain tanks or portable bladders |
Ensure your storage solution can accommodate the volume without risking overflow or contamination.
Preventing Water Loss and Damage During Storage
Proper water storage isn’t just about storing it — it’s about preventing evaporation, contamination, and property damage while it’s off-site or in containers.
1. Covering Storage Containers
Using UV-resistant covers or lids can dramatically reduce evaporation and block sunlight, which can cause algae growth and chemical degradation. Make sure all tanks and bladders remain sealed when not in use.
2. Preventing Groundwater Infiltration
If you’re storing pool water on a property prone to flooding or heavy rainfall, place water tanks on raised platforms and avoid low-lying areas where water can collect. This helps avoid contamination from groundwater or stormwater runoff.
3. Securing Hoses and Connections
Pumping water over long distances or up inclines increases the risk of disconnection and spillage. Use secure hose lock clamps and check connections every few hours for tightness, especially during the initial stages of operation.
4. Proper Disposal of Excess Water
Some repairs will result in the drainage of excess or unusable water. Dispose of this water responsibly (i.e., away from gardens and storm drains). If your water has high levels of chlorine or algaecides, consider discharging it into the sanitary sewer system with permission from local authorities.
Reusing Stored Water After the Repair
The final goal of water storage during repairs is to use it again in your pool. This not only saves money but also preserves hard-earned chemical balance.
Step 1: Reconnect the Pool System
Ensure all repaired or replaced pool components are in place and fully functional before reintroducing water. This includes checking the filter system, pump motor, and any updated hardware designed for water flow efficiency.
Step 2: Transfer Water Back to the Pool
Use the same pump and hose setup to return the stored water into the pool. If your storage tank has an outlet spigot, gravity-fed transfer might also work for smaller tanks.
- Begin with a slow flow to avoid disturbing new repairs or surfaces.
- Monitor the pump’s operation and check for leaks in lines or connections.
Step 3: Rebalance the Water Chemistry
Even if stored properly, the chemistry may need some tweaking. Run your standard test kits and adjust:
- pH
- Chlorine or bromine
- Calcium hardness
- Stabilizer (CYA)
Step 4: Shock the Pool and Run Filtration
Once the bulk of water is returned and test results are balanced, perform a pool shock treatment to kill any residual contaminants. Run the filtration system for at least 24 hours to circulate and clarify the water.
| Water Component | Ideal Range | Action Required |
|---|---|---|
| pH | 7.2–7.6 | Adjust with pH increaser or decreaser |
| Free Chlorine | 1–3 ppm | Add chlorine tablets or liquid |
| Total Alkalinity | 80–120 ppm | Stabilize with alkalinity booster |
| Calcium Hardness | 200–400 ppm | Use calcium hardness adjuster if needed |
By following these steps, you can ensure a seamless and efficient return to full pool operation.
Legal and Environmental Considerations
Before draining and storing pool water, consult your local municipality or environmental agency to understand any rules or guidelines related to pool water handling.
Local Regulations
Some cities or states require permits or specific practices for discharging or storing pool water — particularly when it includes high chemical content. Understanding these ensures you avoid fines or environmental damage.
Environmental Best Practices
You should never dump untreated or chlorinated pool water directly into local waterways. Instead, you have two main options:
- Allow water to dechlorinate naturally or with chemical neutralizers before release.
- Store water and reuse it appropriately to reduce overall wastage.
Conclusion: Smart Planning for Safer Pool Repairs
Storing pool water during repair may seem like a minor logistical component, but in reality, it’s a crucial step that impacts cost, time, water sustainability, and environmental compliance. With planning, the right equipment, and attention to water chemistry, any pool owner can implement a successful water storage strategy during repairs or maintenance.
Whether you’re managing a complete pool overhaul or a partial component replacement, remember that pool water is a resource worth preserving. By following the best practices outlined in this guide, you’ll protect your investment, the environment, and streamline the entire repair process for years to come.
Why is it important to properly store pool water during repairs?
Properly storing pool water during repairs is crucial to maintain water quality, prevent contamination, and avoid unnecessary costs associated with refilling and re-treating the pool. When water is left stagnant or exposed during repair work, it can become a breeding ground for algae and bacteria, leading to cloudiness and potential health hazards. Additionally, improper storage can result in water loss due to evaporation or overflow, which increases water usage and negatively impacts the environment.
For homeowners and professionals alike, maintaining the chemical balance and clarity of stored pool water helps ensure a quicker return to normal operation once repairs are complete. Storing water correctly also avoids the need for complete draining and refilling, which can be expensive and time-consuming. By following best practices for storage, both cost and environmental impact can be minimized, while also reducing the workload for pool maintenance after repairs.
Can I keep the pool water in the pool during repairs?
In many cases, it is possible to keep the pool water in the pool during repairs, depending on the type and scope of the work. Minor repairs such as patching small cracks, replacing tiles, or servicing pool equipment usually do not require complete water removal. Keeping water in the pool helps maintain pool structure stability and prevents hydrostatic pressure issues that can arise when the pool is drained and groundwater pushes upward from beneath.
However, if the repairs involve structural changes, complete resurfacing, or fixing issues with the pool’s foundation, it’s often necessary to drain the pool. Before making any decision, it’s advisable to consult with a professional pool contractor to determine the safest and most effective approach. When water is left in the pool during repairs, ensure proper chemical balance is maintained to prevent algae growth and test water regularly during the repair period.
How should I store pool water if I need to remove it from the pool?
If you need to remove pool water during repairs, the best method is to store it in a clean, large container such as a polyethylene tank or a lined pit that prevents contamination and evaporation. The storage container should be covered to block sunlight and debris from entering the water, which can cause algae growth and dirt buildup. It’s important the container is chemically inert and won’t leach harmful materials into the water.
When storing pool water outside, avoid placing it in direct sunlight for extended periods, as UV rays can degrade chlorine and other chemicals, reducing their effectiveness. Water should be tested for pH and sanitizer levels regularly, and adjustments should be made before returning it to the pool. Consider using temporary water treatment devices such as filters or algaecides to help preserve water quality during the storage period, which can last days or even weeks depending on the repair timeline.
What are the best practices for maintaining water quality during storage?
Maintaining water quality during storage involves regularly testing and adjusting chemical levels to ensure the water remains balanced and sanitary. Key parameters such as pH, alkalinity, calcium hardness, and chlorine levels should be monitored and adjusted according to standard pool guidelines. Periodic circulation of stored water using a pump or submersible filter system can also help prevent stagnation and the development of algae or bacteria.
In addition to chemical testing, it’s important to keep the storage container covered and protected from environmental elements such as wind, rain, and sunlight. Debris should be filtered out regularly to avoid contamination and discoloration of the water. If the water is stored for an extended period, especially in warm climates, adding an algaecide or covering the water surface with a solar blanket may help reduce evaporation and chemical loss. These practices not only protect water integrity but also ensure a smoother reintegration into the pool after repairs.
How long can pool water be stored during repairs?
Pool water can generally be stored for up to two to three weeks without significant degradation in quality, assuming it is properly managed and maintained. The exact time frame depends on several factors including the ambient temperature, whether the water is stored indoors or outdoors, and how effectively chemical balance is maintained during the storage period. In hot climates, water quality deteriorates faster due to increased evaporation and reduced sanitizer levels.
Beyond three weeks, it becomes increasingly difficult to manage algae growth, bacterial contamination, and chemical imbalances without continuous filtration and treatment. If storage is expected to exceed this time frame, it may be more cost-effective to drain and refill the pool rather than treating heavily degraded water. Regular testing, chemical adjustments, and some form of filtration can help extend the viability of stored pool water, but vigilant attention is required to maintain its quality over longer periods.
What can happen if pool water is not stored correctly during repairs?
Improper storage of pool water during repairs can lead to significant problems such as algae blooms, bacterial contamination, and chemical imbalance. Algae can develop quickly in stagnant, sunlit water, turning it green and requiring extensive treatment before it can be returned to the pool. Bacterial growth can also occur, posing health risks and further complicating the water’s usability. Additionally, evaporation can cause chemical concentrations to fluctuate, making the water either corrosive or scale-forming.
Poor storage practices may also lead to unnecessary water waste, particularly if the water becomes too contaminated to reuse. This results in added costs for disposal and refilling, which can be significant depending on local water rates. In some cases, improperly stored water may attract pests like mosquitoes, which can become a public health concern. These issues can delay the completion of repairs and increase the workload for pool professionals and homeowners alike, highlighting the importance of effective water storage methods.
How do I reintroduce stored water back into the pool after repairs?
Before reintroducing stored water into the pool, it’s essential to test its chemical levels and adjust them to meet standard pool requirements. Parameters such as pH, total alkalinity, calcium hardness, and chlorine should be checked and balanced to ensure the water will integrate well without causing cloudiness, scaling, or corrosion. If the water has been stored for an extended period, it may require additional treatment such as filtration, shocking, or the use of algaecides.
Once the water is chemically balanced, it can be pumped back into the pool using a submersible pump or hose. During this process, care should be taken to prevent debris or contaminants from entering the pool. After the water is reintroduced, the pool system should be run for several hours to circulate and filter the water before retesting chemical levels. Proper reintroduction ensures a smooth transition back to regular pool use and avoids unnecessary chemical shocks or damage to the pool surfaces and equipment.