If your pool water is down an inch or two after a hot week, it's easy to assume the sun is doing its job a little too well. That's usually true. But sometimes that isn't the only cause, and the difference between a high evaporation rate and an actual leak can mean thousands of dollars in structural damage if you wait too long to find out. Here's how to think through which one you're dealing with.
How Much Water Loss Is Normal in Florida?
Pools in Central Florida lose water to evaporation year-round, but summer is when it gets substantial. High daytime temperatures, low humidity during dry spells, direct sun exposure, and wind across the water surface all pull moisture out faster than most people expect. A quarter-inch to half-inch of water loss per day is within the normal range during warm, dry, breezy conditions. That adds up to roughly two to three inches per week without a single drop leaking through your shell or plumbing.
If you have a pool heater running or a water feature like a fountain or spillway, evaporation increases further. Features that agitate or aerate the surface speed up the process considerably. So before you panic about a dropping water level, factor in what your pool was doing that week and what the weather looked like.
When the Water Loss Points to a Leak
The math changes when you're losing more than about half an inch per day consistently, especially when temperatures have been moderate or it's been humid and overcast.
A few other signs are harder to explain away with weather. Watch for wet or soft ground around the pool equipment pad or along the return and suction lines. If your water bill is higher than usual without a clear reason, that's worth noting. Cracks in the coping, deck shifting, or tile that's popped off along the waterline can sometimes point to structural movement caused by water undermining the surrounding soil. And if you're adding water more than once a week to keep the level where it needs to be, that's not a heat wave, that's a loss rate that deserves a closer look.
Automatic fill valves can mask the problem entirely. If yours is running more often than it used to, it may be compensating for a leak you haven't noticed yet.
The Bucket Test: A Simple Starting Point
Before calling anyone, you can do a quick comparison test at home. Fill a bucket with pool water and set it on a step so it's sitting in the pool with the rim above the waterline. Mark the water level inside the bucket and on the pool wall. Leave both untouched for 24 to 48 hours, then compare.
If the pool lost significantly more water than the bucket, you have more than just evaporation happening. If they dropped by roughly the same amount, evaporation is probably the explanation. It's not a perfect test and won't tell you where a leak is or how bad it is, but it gives you something concrete to work with before the next step. We cover the full method in more detail in our article on how to do a pool bucket test.
What to Do If You Suspect a Leak
If the bucket test suggests something's off, or if your water level keeps dropping no matter what you add, it's time to bring in a professional. Leak detection isn't guesswork at this point. At Splashworks, our trained technicians use pressure testing on the plumbing lines and dye testing around fittings, returns, skimmers, and the shell to find exactly where water is escaping. Catching it early usually means a straightforward repair. Left alone, even a small leak can wash out soil beneath the deck, shift the shell, or damage equipment.
Our pool leak detection service covers residential pools throughout our service area, from Ocala and The Villages to Clermont, Spring Hill, and beyond. If you've run through the bucket test and you're still not sure what you're looking at, the best next step is a professional inspection before a small problem turns into a big repair bill. Reach out to Splashworks today to get scheduled.
