Why Is My Pool Losing Water?
If you notice your pool water level dropping, it is normal to wonder whether something is wrong. During the summer, pools can lose water for several reasons. Sometimes it is just normal evaporation from heat, sun, wind, and regular use. Other times, water loss can point to a leak in the liner, plumbing, fittings, skimmer, pump system, or pool equipment.
The key is knowing the difference between normal water loss and a problem that needs attention.
Is It Normal for a Pool to Lose Water?
Yes, some water loss is completely normal, especially in the summer. Warm weather, direct sunlight, wind, and splashing can all cause your pool water level to drop.
Pools may also lose more water during busy swim days. If kids are jumping in and out, people are splashing, or water is being carried out on towels and bathing suits, the water level can go down faster than usual.
In many cases, small changes in water level are nothing to panic about. But if your pool is losing water quickly or consistently, it is worth taking a closer look.
Evaporation vs. a Leak
Evaporation usually happens gradually. You may notice the water level dropping a little after hot, sunny, or windy days. This is especially common during warm-weather stretches when the pool is uncovered.
A leak is different. If your pool keeps losing water even when the weather is mild, it's not being used heavily, or the water level drops below the normal operating level, there may be an issue.
A leak may also show up as wet spots around the pool, soft ground, air bubbles in the return lines, low water pressure, or visible cracks and damage around hoses, fittings, skimmers, or the liner.
Check the Water Level
One of the easiest ways to start is by watching your water level closely. Mark the water level with tape or a pencil on the skimmer faceplate, liner, or pool wall. Check it again after 24 hours.
If the water level drops only slightly, it may be normal evaporation. If it drops noticeably, especially day after day, there may be a leak or equipment issue.
You can also compare water loss when the pump is running versus when it is off. If the pool loses more water while the system is running, the issue may be connected to plumbing, hoses, fittings, or equipment.
Common Places Pools Lose Water
If you suspect a leak, start by checking the most common problem areas.
Look around the pool liner for small tears, holes, or worn areas. Even a small liner leak can cause steady water loss over time.
Check the skimmer area, return fittings, hoses, clamps, pump connections, filter connections, and any visible plumbing. Loose fittings, cracked hoses, worn gaskets, and damaged parts can all allow water to escape.
For above-ground pools, pay close attention to hoses, clamps, wall fittings, and the liner near the floor and seams. For inground pools, inspect the skimmer, returns, steps, lights, and equipment pad.
Could It Be Your Pool Equipment?
Sometimes the pool itself is not the problem. Water loss can come from the equipment system.
Check your pump, filter, heater, valves, hoses, unions, and connections for dripping or pooling water. A small leak near the equipment pad can add up quickly if the pump runs for several hours a day.
Also look for cracks in pump lids, worn O-rings, loose drain plugs, and leaking filter parts. Replacing a small part early can help prevent larger issues later in the season.
What Should You Do If You Find a Leak?
If you find a small tear in a vinyl liner, a liner patch kit may help repair the issue. If a hose, fitting, clamp, basket, gasket, or skimmer part is damaged, replacing the worn part may solve the problem.
If the leak is difficult to find, the water loss is severe, or the issue appears to be underground or behind the pool wall, it may be best to contact a pool professional for further inspection.
Products That Can Help
If your pool is losing water, helpful products may include replacement hoses, fittings, clamps, skimmer parts, return fittings, liner patch kits, pump parts, filter parts, O-rings, gaskets, and other pool repair accessories.
Keeping replacement parts on hand can save time, especially during the busy summer season when you want your pool up and running.
Stay Ahead of Summer Pool Problems
Some pool water loss is normal in hot weather, but fast or constant water loss should not be ignored. By checking your water level, inspecting your liner, reviewing your equipment, and replacing worn parts early, you can help prevent small problems from becoming bigger repairs.
At PTL Direct, we carry replacement hoses, fittings, skimmer parts, liner patch kits, pool parts, and accessories to help keep your pool ready for summer.
