The short answer
Why Pools Overflow in Storms
During a heavy storm, rain adds a large volume of water to your pool in a short time. If the pool is already at its normal level, that extra water has nowhere to go except over the edges. The overflow can wash away decking, soil, and even undermine the pool's structure if left unchecked.
The amount of overflow depends on the storm's intensity and your pool's drainage design. Many pools have skimmers and a main drain that help remove excess water, but they can be overwhelmed by a downpour. In mild marine climates with wet winters, storms can bring prolonged rain, so understanding your pool's limits helps you plan.
What You Can Do Before a Storm
When a storm is forecast, lower the pool water level by a few inches to give yourself a buffer. This simple step reduces the chance of overflow. You can use a submersible pump or the pool's waste setting on the filter to drain some water safely.
Check that your pool's overflow line or drain is clear of leaves and debris. Blocked drains can cause water to rise faster than it can escape. Also, ensure the area around the pool slopes away from the house so any overflow moves away from your foundation, not toward it.
- Lower water level by 6 to 12 inches before heavy rain
- Clear leaves from skimmer baskets and overflow drains
- Inspect the pump and filter for proper operation
- Check that the pool deck has good drainage away from the house
- Consider a pool cover that allows water to drain through
- Know where your main shutoff valve is in case of leaks
What to Do If Your Pool Overflows
If water spills over, act quickly to reduce further overflow. You can pump out excess water using a submersible pump, but do not drain the pool completely unless you have professional guidance. Emptying a pool can cause structural damage if the water table is high.
Once the storm passes, check for signs of damage around the pool area. Look for eroded soil, cracked decking, or standing water near the house. If you notice any water intrusion into your home, it's important to address it soon to prevent mold and structural issues.
Cleaning Up After an Overflow
After an overflow, you may have debris like leaves, dirt, and small branches scattered around your yard. Remove this debris promptly to keep it from washing into drains or clogging your pool's filtration system. A wet-dry vacuum can help with smaller messes.
If the overflow water enters your home, you may need professional help. Water that soaks into carpets, drywall, or wood can lead to mold growth within days. In that case, contacting local water damage pros can help assess the situation and begin drying and sanitizing the affected areas.
When to Call the Pros
If the overflow causes significant water damage to your home's interior or foundation, it's wise to call in professionals. They have the equipment to extract water, dry out materials, and check for hidden moisture. Attempting to handle major water damage on your own can lead to incomplete drying and long-term problems.
The pros can also help with debris removal after a storm, especially if large branches or other objects have fallen into your yard. Their expertise ensures that cleanup is thorough and that your property is safe. Remember, the cost for such services varies depending on the extent of the damage and the specific work needed.
Water damage does not wait
Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.
Call Now (425) 407-5186Frequently asked questions
Should I drain my pool before every storm?
Not every storm, but if heavy rain is forecast, lowering the water level by a few inches is wise. This gives you a buffer and reduces overflow risk. Check your local forecast and act accordingly. Over-draining can harm the pool structure, so keep it moderate.
Can a pool overflow damage my house?
Yes, if the overflow water seeps into your foundation, it can cause cracks, basement flooding, and mold growth. Water pooling near the house can also erode soil and weaken the structure. Taking steps to direct overflow away from the house is essential.
What should I do if I see water entering my home from the pool?
Immediately turn off the pool pump and shut off the home's water supply if needed. Remove any standing water with towels or a wet-dry vacuum. Then, contact local water damage pros to assess the situation and prevent mold. Acting quickly is key to minimizing damage.