Maintaining a swimming pool involves more than just keeping the water clean and chemically balanced. One common and often overlooked issue pool owners face is excess water in their pools. Whether it’s due to heavy rainfall, overfilling, or improper water level maintenance, having too much water can lead to operational inefficiencies, safety hazards, and long-term damage to your pool structure or equipment.
In this comprehensive guide, we will explore effective methods to remove excess water from your pool safely and efficiently. Whether you’re dealing with seasonal flooding or an accidental overfill, we’ve got you covered with practical tips, equipment recommendations, and expert advice.
Understanding the Risks of Excess Pool Water
Before diving into the methods of removing extra water, it’s important to understand why this issue matters.
Impact on Chemical Balance
Excess water can dilute the chemicals in your pool, throwing off pH, chlorine, and alkalinity levels. This creates an environment where algae and bacteria can thrive, requiring more frequent and costly chemical treatments.
Safety and Aesthetic Concerns
When the water level rises too high, it overflows the skimmer, reducing its efficiency and potentially leading to slippery deck conditions. Excess water can also cause structural strain on pool edges or vinyl liners, leading to leaks or material fatigue over time.
Damage to Pool Equipment
High water levels can interfere with the proper operation of pool pumps, filters, and automatic cleaners. Water spilling over the coping or tiles may also damage surrounding decking, electrical components, or landscaping.
Signs You Have Too Much Water in Your Pool
Recognizing the signs of a water overflow or high water level can help you address the issue promptly.
Sidewall Overflow
The clearest indicator is water spilling over the pool’s edge, especially if this happens without intentional adjustment. This can occur after a heavy rainstorm or faulty timer settings on automatic water fillers.
Skimmer Malfunction
If the water is too high, the skimmer may not work properly. You may notice a lack of surface debris removal or air being drawn into the pump system.
Equipment Issues
High water levels can result in pressure imbalances in the filtration system and cause abnormal noises from the pump or an increase in energy consumption.
Methods to Remove Excess Water from Your Pool
There are several ways to safely lower the pool water level without harming the structure or surrounding areas. The right method depends on the severity of the situation and the equipment you already have.
Use a Submersible Sump Pump
A submersible sump pump is one of the most effective tools for draining excess water quickly.
- Place the pump at the lowest point of the pool—it works best when submerged.
- Connect a garden hose to the discharge port, and lead it to a safe drainage area (not into your yard if it’s landscaped).
- Plug in the pump and let it run until the water level is lowered to the recommended level—halfway up the skimmer opening.
It’s essential to avoid siphoning pool water back into the plumbing system. Always ensure that the pump is specifically rated for sump or pool use, not for irrigation or general water systems.
Drain Water Through the Filter System
If your pool has a multiport valve filter system, you can drain water through the waste line.
- Turn off the pump before adjusting the valve.
- Turn the multiport valve to the “Waste” setting. This bypasses the filter and sends water directly to the drain.
- Reconnect the backwash hose to ensure proper outflow.
- Turn on the pump and let it run until the desired water level is reached.
This method is fast and effective but may use a large volume of water. Ensure you comply with local water drainage regulations before proceeding.
Use a Pool Cover Pump or Bilge Pump
For minor water excess—such as surface-level rain accumulation—a pool cover pump can effectively remove small quantities of water.
How to Use a Cover Pump:
- Place the pump on a floating cover or directly into surface water buildup.
- Plug in the pump and allow it to drain excess rainwater or melted snow.
- Ensure the hose directs water away from the pool edges to prevent seepage or landscaping damage.
These pumps are not strong enough for major water removal but are excellent for spot maintenance, especially during rainy or snowy seasons.
Manual Bailing and Siphoning
For low-tech or emergency situations, a basic siphon setup or bucket can still work effectively.
Using a Garden Hose for Siphoning:
- Submerge one end of a garden hose into the pool.
- Place the other end lower than the water level—ideally near a drainage area.
- Suck on the discharge end to start the siphon or use a hand pump to prime it.
- Once water starts flowing, it will continue draining until both ends are at the same level.
Manual draining is time-consuming and less efficient but helpful in cases where electricity or heavy equipment is unavailable.
Preventing Future Pool Water Accumulation
While dealing with excess water is manageable, prevention should always be part of your maintenance strategy.
Invest in a Water Leveler or Auto-Fill Valve
These devices automatically add or remove water to maintain an optimal level. Some systems even connect to a float mechanism that triggers drainage or filling as needed.
They’re particularly effective in areas with frequent rainfall and help prevent accidental overflow while reducing the need for manual adjustments.
Monitor Weather Patterns
Stay informed about local weather conditions so you can proactively adjust your pool water level in advance of heavy rain. Lowering the level slightly before a storm gives your pool natural overflow capacity.
Regular Pool Maintenance
Routine inspection of your pool’s water level, filtration system, and surrounding drainage helps identify issues early. Check the skimmer, water inlet, and filter for clogs, and clean them as needed.
Upgrade Your Drainage System
Poor surrounding drainage can cause runoff to re-enter the pool area. Installing French drains or channel drains around the pool deck ensures rainwater finds an efficient runoff path away from your pool and property.
Safety and Environmental Considerations
Draining large amounts of water requires planning to comply with local environmental and safety guidelines.
Avoid Damaging Your Yard or Neighbors’ Property
Discharging chlorinated water directly onto grass or into gardens can damage vegetation. Dechlorinate the water before disposal or direct it into a storm drain system (if permitted). Always check your municipality’s water disposal regulations.
Preserve Pool Liners and Structures
If you own a vinyl-lined pool, never drain it completely unless there are structural repairs to be made. Draining without proper ground water balance can cause structural issues like lifting or tearing.
For concrete or fiberglass pools, make sure to never drain faster than the water table outside the pool can adjust. If the external water pressure exceeds the internal pressure, hydrostatic pressure can crack the pool floor.
Use Eco-Friendly Practices
Conserving water during pool maintenance is an increasingly important consideration. If you’re in a location experiencing drought conditions, explore options like:
- Reusing lightly chlorinated water for irrigation (after dechlorination)
- Capturing rainwater and redirecting it back into the pool or for landscaping
- Installing a recirculation system that conserves or reuses runoff
Step-by-Step Summary for Efficient Water Removal
Quick Reference Chart
| Method | Best For | Pros | Cons |
|---|---|---|---|
| Submersible Sump Pump | Large water removal, deep drainage | Fast, efficient, easy setup | Requires proper disposal path |
| Multiport Filter Drainage | Controlled water removal via existing system | Integrated, maintains filter | Uses large volume of water, may not lower to very low levels |
| Pool Cover Pump | Rain or snow overflow | Simple, low cost | Limited capacity, not for large volumes |
| Manual Draining | Minor overflows, quick fixes | Doesn’t require special tools | Labor-intensive, time-consuming |
When to Call a Professional
While most excess water situations can be handled independently, some require expert assistance.
Structural Concerns
If the water level problem persists despite regular maintenance, or you suspect structural damage such as shifting tiles or cracks in the concrete shell, consult a licensed pool contractor for an inspection.
Electrical Failures
Water coming into contact with electrical components—especially ground-level systems—can pose a serious electrocution hazard. In such cases, turn off all power before attempting any repairs and call an electrician and pool technician immediately.
Customized Solutions
If you’re experiencing repeated water level issues due to poor drainage, terrain, or weather patterns, investing in a custom drainage or automation system can make all the difference. Licensed professionals can help you design and install these systems for long-term effectiveness.
Final Thoughts
Removing excess pool water doesn’t have to be a daunting task. Whether you’re a DIY pool owner or prefer having professionals manage your maintenance, understanding your options is key. By regularly monitoring your water level, taking preventive measures, and being prepared for unexpected surges, you can ensure your pool remains safe, clean, and efficient all year long.
Taking prompt action when faced with high water levels not only protects your investment but also contributes to the longevity and performance of your entire pool system. Equip yourself with the right tools, stay informed about best practices, and always prioritize safety and environmental responsibility.
Now that you know how to correctly get rid of excess water in your pool, you’re better prepared to maintain an optimal, safe, and beautiful outdoor oasis!
Why is it important to remove excess water from a pool?
Removing excess water from your pool is important to maintain proper chemical balance and ensure the structural integrity of the pool. Too much water can dilute pool chemicals, making them less effective at keeping the water clean and safe for swimming. This can lead to algae growth, bacterial contamination, and issues with water clarity.
Additionally, excess water can put pressure on the pool walls and cause damage, especially in in-ground pools. In areas with heavy rainfall or flooding, water levels rising above the skimmer can disrupt the filtration system and even lead to equipment malfunctions. Regularly monitoring and adjusting the water level helps extend the life of your pool and supports optimal swimming conditions.
What are the common causes of excess water in a pool?
Excess water in a pool typically results from heavy rainfall, overfilling during maintenance or refilling, or malfunctioning automatic fill systems. During storms or prolonged wet seasons, pools can quickly accumulate significant amounts of additional water. Similarly, pool owners may accidentally overfill the pool when topping off for evaporation or starting up the pool for the season.
Another common cause is improperly functioning equipment such as pool covers that trap water or automatic refill devices that fail to shut off. In some cases, groundwater rising due to a high water table may also lead to increased water levels. Understanding these causes helps pool owners anticipate and manage water levels more effectively.
How can I manually remove excess water from my pool?
One of the simplest methods to manually remove excess water from your pool is using a submersible pump. These pumps can be placed at the bottom of the pool and connected to a hose that directs the water to a safe drainage area away from the pool structure. It’s important to watch the water level closely to prevent it from dropping too low, which can damage the pool liner or cause the pool to float.
If a pump is not available, a pool cover pump can be used if the water level is mostly on the surface, such as from rain or snowmelt. Another option is using the pool’s filtration system by setting the valve to “waste” and running the pump to drain water directly out through the backwash line. Always check local regulations regarding where the drained water may be discharged.
Can I use the backwash method to lower the water level in my pool?
Yes, the backwash method is an effective way to lower the water level if you have a sand or DE filter system. By switching the multiport valve to the “backwash” setting, water is expelled from the pool through the waste line instead of being recirculated. This method drains a significant amount of water quickly and uses equipment you likely already own.
However, it’s important to monitor the water level closely and not let it drop below the skimmer intake, which could cause the pump to draw air and damage the system. Also, be mindful of where the backwashed water is directed—it should not flood nearby areas or damage landscaping. After backwashing, reset the valve to the “filter” position to resume normal operation.
Are there automatic solutions available for managing excess water in a pool?
Yes, automatic pool cover pumps are available to help manage excess water, especially during rainy seasons or when the pool is covered. These pumps turn on automatically when water accumulates on the surface, helping to keep the cover clear and the water level in check. They are ideal for maintaining water balance without constant manual intervention.
Another automated solution is installing a float valve or a water level controller, which connects to the pool system and automatically drains excess water when levels rise above the optimal point. These devices are commonly used in commercial pools but can also be installed in residential pools for added convenience. While they require an initial investment, they provide peace of mind by continuously managing water levels.
What precautions should I take when draining water from my pool?
When draining water from your pool, it’s essential to avoid lowering the water level too much, particularly in in-ground pools. Draining below the skimmer level can cause the pool pump to run dry, which may damage the equipment. It can also lead to structural issues if the pool shell is empty while groundwater is high, causing the pool to “pop” out of the ground.
Also, be cautious about where the water is being drained. Discharging large volumes of chlorinated water into gardens or storm drains can harm plants and local waterways. Check local regulations to ensure you are draining responsibly, and consider diluting the water before release if necessary. Always turn off electrical equipment before performing any manual draining for safety.
How often should I check and adjust the water level in my pool?
You should check your pool’s water level at least once a week during the swimming season and more frequently after heavy rains or periods of intense evaporation. Regular inspections help maintain the correct balance and ensure your filtration system runs efficiently. It also allows you to address water level issues before they cause more serious problems related to chemistry or equipment operation.
In regions with significant seasonal weather changes, it’s advisable to monitor the water level more closely after winter when thawing occurs or during monsoon seasons with heavy rain. Pool covers should also be checked regularly for standing water that may need removal. Staying attentive to the water level contributes to a safer, cleaner swimming environment and reduces long-term maintenance costs.