I have spent years finding leaks in backyard pools across Las Vegas, mostly in plaster pools, pebble pools, spas, and older systems that have been patched more than once. I started as a route technician, then moved into leak detection after seeing too many owners spend money on the wrong repair. Out here, water loss can fool people because heat, wind, and dry air are always part of the story. I learned to slow down, measure first, and let the pool tell me where to look.
Why Las Vegas Pools Can Be Hard to Read
In Las Vegas, a pool can lose water fast on a hot week and still be perfectly sound. I have seen a normal pool drop close to a quarter inch a day during windy stretches, especially in open yards near the edge of town. That does not mean every loss is evaporation. It means I need a baseline before I call anything a leak.
The first thing I ask about is the pattern. A pool that drops the same amount every day, pump on or off, points me in one direction. A pool that loses more water only while the equipment runs points me somewhere else. Small details matter.
I once checked a pool near Summerlin where the owner thought the shell had cracked because the water kept falling below the tile line. The real issue was a suction-side fitting that only showed itself after the pump ran for a few hours. Another customer last spring had a raised spa that was draining back into the pool overnight, which looked like a leak until we watched the levels separately. Those jobs remind me not to chase the loudest theory first.
The Tools I Trust Before I Break Concrete
I still carry dye, plugs, pressure test gear, a listening device, and a simple measuring cup because no single tool gives the whole answer. Dye is helpful around lights, skimmers, steps, and returns, but it can lie if the water is moving. Pressure testing is cleaner for plumbing, though it only works if each line can be isolated. I would rather spend 90 careful minutes testing than send someone toward several thousand dollars in deck work too soon.
Some owners call after another crew has already guessed at the leak and opened concrete near the wrong return. If a homeowner asks me for a referral outside my own schedule, I tell them to compare notes with a Las Vegas pool leak detection company before approving any invasive repair. A second set of tests can save a lot of mess. I have no problem with excavation when the evidence is strong, but I do not like seeing a clean deck cut open on a hunch.
My pressure rig gets used on most plumbing calls, especially on older pools with separate skimmer and main drain lines. I bring the line up, watch the gauge, and listen for the drop rather than rushing the reading. A fast drop is one kind of clue, while a slow bleed over several minutes is another. The difference can change where I place my listening gear.
Where I Usually Find Trouble First
Skimmers are high on my list because Las Vegas soil moves, decks settle, and plastic throats age in the sun. A hairline separation at the mouth of a skimmer can pull water every day without looking dramatic. I have found leaks there that barely moved dye until I blocked return flow and let the water calm down. Once the surface is still, the story changes.
Pool lights are another common stop, especially in older niches where the conduit seal has hardened. I do not call a light niche bad just because dye twitches near it. I test around the ring, the cord, and the conduit opening, then compare that behavior with the actual water loss. A poor seal can lose a surprising amount over a week.
Returns, cleaner lines, and spa jets can be trickier because they may only leak under pressure. I had a pool in Henderson where the owner lost more water on cleaning days than on quiet days, which led us to the dedicated cleaner line. The deck looked fine. The pipe below did not.
Cracks in the shell do happen, but they are not the first answer I reach for. Many surface cracks in plaster are cosmetic, while a structural crack usually comes with a more consistent pattern and other signs. I look for staining, hollow spots, movement near steps, and changes after the water drops below a feature. One clue is rarely enough.
How I Talk Through Cost and Repair Choices
I try to separate detection cost from repair cost because they are different decisions. Detection is about evidence. Repair is about access, materials, finish, and how much of the surrounding area must be disturbed. A simple fitting repair might be modest, while a line under a stamped deck can turn into a larger job.
Owners often ask me if they should keep filling the pool while they decide. My answer depends on how low the water has dropped and what equipment is exposed. I do not like pumps pulling air, and I do not like plaster sitting dry in the Las Vegas sun. If the pool is losing several inches in a short stretch, I move faster.
There is also a timing issue with busy seasons. In late spring, repair crews can be booked out because everyone wants the pool ready before the first long run of triple-digit days. I tell people to document the water level with tape or a pencil mark at the tile, then take a photo at the same time each day. Three clean readings are more useful than a week of vague guesses.
I do not push owners toward the most expensive fix. Sometimes an epoxy repair around a small light conduit issue is reasonable, and sometimes it is just a bandage. A broken underground line deserves a different conversation. The right answer depends on the evidence, the age of the pool, and how long the owner plans to keep the property.
What I Want Pool Owners To Do Before I Arrive
The best thing an owner can do is leave the pool as normal as possible for a day or two before testing. Do not drain it low unless someone has told you to for safety or repair reasons. A pool that is already below the skimmer, returns, or light can hide the exact point where the leak slowed. That missing information matters.
I also ask people not to add a lot of chemicals right before I arrive, especially if they have been fighting cloudy water. Clear water helps dye testing and visual checks. If I cannot see the main drain or the deep-end floor, I lose time. A clean filter and normal pump schedule also make the equipment side easier to judge.
Photos help more than most people expect. A picture of the equipment pad, the waterline, the skimmer face, and any damp soil can point me toward a faster test sequence. One owner in the southwest valley sent me 6 photos before the visit, and I noticed wet gravel behind the backwash line before I ever walked through the gate. That did not solve the case by itself, but it gave me a place to start.
I tell people to write down whether the pool loses more with the pump on, with the pump off, or after spa use. Those notes do not need to be fancy. Two or three days of careful observation can cut through a lot of noise. Guessing gets expensive.
A pool leak in Las Vegas is rarely solved by staring at the water for a few minutes and picking the most dramatic explanation. I trust measurements, calm water, isolated lines, and a little patience. If I had one piece of advice for an owner, it would be to stop chasing the repair before the leak has been proven. The desert already takes enough water from a pool, so I prefer not to waste any more by guessing.