Pool leak detection in Sanibel, FL from Blue Science: pressure and dye testing that finds where a Sanibel swimming pool is losing water, even when daily storms, Gulf salt air, and year-round use make evaporation hard to judge, a written report with the location and the results explained, the leak repair quoted separately, and a 60-day warranty when we do the repair. Pricing varies by pool, so call for a quote on the standard leak detection visit.
Sanibel, FL Pool Leak Detection
Stop guessing where the water is going
Pressure testing, dye testing, and focused inspection follow the evidence on a Sanibel pool, and then we explain what we found and the practical next step.
Pool Leak Detection for Sanibel
Find the source before water loss becomes a bigger problem
Sanibel pools sit on barrier-island sand on the Gulf side and on wet ground along the bayous, so a leaking line never leaves a puddle, and the rebuilding since the storm has put new decks and foundations over pool lines that were laid decades ago. If the autofill runs more than the sea breeze explains, or the summer water bill did not match an empty house, Blue Science finds the source and quotes the repair separately.
Construction traffic and new footings sit on top of old pool runs all over Sanibel now, so we map the original lines before pressure testing, watch whether the level tracks the tide on the bayou side, and dye-test the skimmer and the light before anyone talks about cutting new concrete.
Leak clues in a Sanibel pool
A water bill that climbed while the house was empty, a level that moves with the tide along the bayous, air in the pump basket, a light that quit after the level fell, or a deck joint that opened where the new slab meets the old coping are the signs worth a call. Island sand drains the loss away instantly, so a wet spot in the yard is never part of the picture.
Lines crushed under new construction, corroded light niches and return fittings, skimmer throats on settled decks, and main drain lines below the water table on the bayous are the usual sources, and each is dye-tested during the visit.
Leak detection for Sanibel and the Sanibel Bayous
Our leak technicians cover Gulf Shores, the Sanibel Bayous, Periwinkle Way, and Captiva on the same schedule as our weekly routes, so a visit can be arranged within days. Call for pricing on the standard leak detection visit in Sanibel, FL, with repairs quoted separately once the source is found.
Detection carries a 60-day warranty when Blue Science performs the repair, and the line is pressure tested again before the technician heads back over the causeway.
A leak test in Sanibel
From a bucket on the step to a marked spot
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Bucket test read Yesterday's bucket tells us how much of the loss is evaporation and how much is not. -
Pressure and dye Each line is isolated and pressure-tested; dye finds cracks around fittings and lights. -
The mark The source is marked, photographed, and written up with the repair options.
Your Southwest Florida team
17 cities, one phone number, the same faces
The leak technician, the repair crew, and the weekly routes work out of the same Southwest Florida office, so a found leak becomes a scheduled repair without a second company.

Our customers in Sanibel love our scientific approach to pool leak detection. Read our reviews here.
Turn Water Loss into a Clear Answer
Time to find out where your Sanibel pool is losing water?
Let us know how quickly the level drops and what you have seen around the pool or equipment, and we will schedule the appropriate leak detection visit and get the issue fixed, whatever daily storms, Gulf salt air, and year-round use have done to the plumbing.
Good to know
Questions Sanibel Pool Owners Ask
Can the high water table hide a leak?
It can change the reading. Groundwater pushing in from outside can slow a shell leak while the pump is off and let it run when the pump is on. That is why I test with the pump running and again with it off before I go looking for the spot.
Answered by a Blue Science leak technician, Southwest FloridaWhy is my pool losing 1 inch of water a day?
Three things drop a pool an inch a day, and only one of them is normal. Evaporation on the hottest Sanibel days can take up to half an inch, daily storms, Gulf salt air, and year-round use permitting; splash-out and backwashing take a little more on a busy weekend; everything past that is a leak. Pressure-side leaks show up as a wet spot or a pump that spits air, suction-side leaks as air in the pump basket, and shell leaks as a level that stops dropping at the same spot every time, which our leak detection visit sorts out with pressure tests and dye in any of the 17 cities we cover. Detection is warranted for 60 days in Sanibel when Blue Science makes the recommended repair, in all 17 cities we serve.
How can I find out where my pool is leaking from?
Work from the easy checks to the hard ones, with daily storms, Gulf salt air, and year-round use in mind. Look at the pad first for a wet pump seal or a weeping filter; then run the bucket test for a day with the autofill off; then let the water level tell you where it stops, since a stop at the skimmer, at the light, or at the returns each points to a different suspect, and in Sanibel the plumbing joints are the usual answer, which the pressure test names, a call to 239-286-7700 away. Our Sanibel technicians document the source with photos before any repair is proposed, whatever daily storms, Gulf salt air, and year-round use did to the pipes.
What is the easiest way to find a leak in a pool?
The bucket test, and it costs nothing, daily storms, Gulf salt air, and year-round use or not. Set a bucket on the top step, fill it to match the pool, mark both lines, and leave the pool running normally for a day with the autofill off; if the pool drops more than the bucket, the difference is a leak. That tells you there is one; finding it in a Sanibel pool usually takes pressure testing the suction and return lines and dye testing the fittings, lights, and skimmer, which is what the detection visit does in all 17 cities. Our Sanibel visit repeats the bucket test with the pump off and on, which separates plumbing leaks from shell leaks, in all 17 cities.
What is the most common cause of pool leaks in Sanibel?
Plumbing and fittings, not the shell. Skimmer throats pull loose where the deck and the pool move differently, return lines crack where a deck has settled, and light niches and conduit corrode in wet ground; in Sanibel, daily storms, Gulf salt air, and year-round use speed up all three. Shell cracks are rarer and easier to see; the plumbing leaks hide under the deck, which is why the search starts under pressure rather than with a flashlight, in all 17 cities we serve. Once fixed, a Sanibel pool on weekly service gets its water level checked every visit, whatever daily storms, Gulf salt air, and year-round use bring.
Can a pool leak be in the plumbing under the deck?
Often it is, and daily storms, Gulf salt air, and year-round use make it likelier. Suction lines from the skimmer and main drain and the return lines to the jets all run under the deck, and they are the lines a shifting Sanibel deck stresses most as daily storms, Gulf salt air, and year-round use work on it; pressure testing isolates each line and shows which one will not hold, and locating equipment narrows the break to a spot before anything is opened. Detection and repair are quoted separately, so you approve a defined fix rather than a search, the same way in all 17 cities.
Seen our truck on your street?
That is because we also service Fort Myers Beach, Cape Coral, Captiva, Estero, and Miromar Lakes
The route that covers Sanibel runs through these towns on the same days, with the same technicians. If you split time between houses, or your parents' pool is a few exits away, one phone number covers all of them.




