Swimming Pool Leak Detection in Sandy, UT

Swimming pool cross-section showing leak in pool plumbing with blue tracer dye cloud underwater

Many Sandy homes have pools, and Utah's dry climate makes every pool lose water to evaporation — which is exactly why real leaks get missed for months. The question is always the same: is it evaporation, or is it a leak? We answer it systematically: the bucket test establishes your baseline, pressure testing isolates the plumbing from the shell, and electronic detection pinpoints the failure — usually without draining the pool. And because we also cover spas and hot tubs, one visit can sort out the whole backyard water system.

Warning signs

Water level dropping faster than evaporationIn the Salt Lake Valley, up to about a quarter-inch per day of evaporation is normal. Consistently losing half an inch or more per day means a leak, not the weather.

Air in the pump or losing primeA suction-side plumbing leak pulls air into the system — bubbles in the pump basket or a pump that won't stay primed are classic signs.

Wet spots around the pool equipmentDamp soil or standing water near the equipment pad, especially around pumps, filters, and heaters, points to plumbing leaks.

Cracks in the shell or copingStructural cracks, separating coping, or deck settlement can all be leak paths — or the result of soil saturation from a long-running plumbing leak.

Heater or equipment losing pressurePressure-side leaks show up as equipment that can't hold pressure or a system that needs constant refilling.

When to call us

Run the bucket test first (we explain it below). If the pool loses significantly more than the bucket, you have a leak worth finding — especially before it undermines decking or wastes a season of water and chemicals. Catch it early and the fix is usually a targeted repair, not a replumb.

How we find it

The bucket test
Place a bucket of pool water on a pool step, mark both water levels, and compare after 24 hours with the pump running normally. Equal loss = evaporation. Pool losing more = leak. It's the simplest diagnostic in the business and it works.

Pressure testing
Plumbing lines are isolated and pressurized one by one — skimmer, main drain, returns, cleaner lines. A line that won't hold pressure is the leaking one.

Electronic detection
For vinyl-liner and fiberglass pools, electronic methods can trace leaks through the liner without draining.

Dye testing
With the pump off, dye is released near suspected cracks or fittings. If there's a leak, the dye gets drawn visibly toward it — simple, visual, conclusive.

Spa & hot tub coverage
Spas and hot tubs get the same systematic approach: shell vs. plumbing isolation, then targeted testing. Equipment leaks (pumps, heaters, manifolds) are the most common culprits.

Our process

1
Bucket-test review
We start with your evaporation baseline — or run one — so we're chasing a real leak, not the Utah climate.
2
Visual & equipment check
Equipment pad, skimmer, returns, and visible plumbing get inspected first; many leaks are found here without advanced testing.
3
Isolation pressure testing
Lines are tested individually to separate plumbing leaks from shell leaks.
4
Pinpoint testing
Dye or electronic methods narrow the confirmed leak to its exact point.
5
Marked & documented
The leak location is marked and photographed with a clear description for your pool contractor.

What to expect

Expect a process that usually doesn't require draining the pool — most testing is done with the water in place. You'll get a clear verdict: plumbing or shell, which line or area, and exactly where. Spa and hot tub leaks are covered in the same visit when they're part of the same system.

Honest limitations

We find leaks; pool contractors perform the repairs (liner patches, plumbing fixes, structural work). Multiple simultaneous leaks are possible in aging pools — we'll identify each one we can confirm. Evaporation in Utah's dry summers is genuinely high, so the bucket test baseline matters; we won't sell you a leak investigation for a pool that's just evaporating.

Sandy & Utah context

Utah gives pools a hard life: alkaline clay soils that shift, freeze-thaw cycles that stress plumbing and shells, and a dry climate with high evaporation that masks real leaks. Local specialists note that underground pool pipes in Utah fail from exactly this combination. Sandy's higher-end neighborhoods — Pepperwood, Willow Creek, Hidden Valley — have significant pool ownership, and many of those pools are now old enough for plumbing to be the prime suspect when water loss starts.

How do I know if my pool has a leak or it's just evaporation?

Do the bucket test: bucket of pool water on a step, mark both levels, wait 24 hours. In the Salt Lake Valley, about 1/4 inch per day of evaporation is normal. If the pool loses 1/2 inch or more per day beyond the bucket, you have a leak.

Do you have to drain the pool to find the leak?

Usually not. Pressure testing, dye testing, and electronic methods are all performed with the water in place. Draining is a last resort, not a first step.

Can you find a pool leak under concrete without destroying the deck?

Yes — that's the point of detection. Pressure testing identifies which line leaks, and the leak is typically pinpointed to a small area, so any deck work is limited to a targeted opening, not a full teardown.

Why do underground pool pipes break in Utah?

The local combination: alkaline clay soils that expand and contract, freeze-thaw cycles stressing rigid plumbing, and ground movement over time. Older pools with aging plumbing are the most vulnerable.

Do you also check spas and hot tubs?

Yes. Spa and hot tub leaks — shell cracks, jet fittings, equipment manifolds — are investigated with the same systematic approach, often in the same visit as the pool.