Find leak in vinyl pool

One inch of your pool water can equal gallons. Check downhill from a pool, looking for weepers where underground leakage is surfacing. Check for soft or wet spots in the yard, on the side of the pool where the plumbing returns water to the pool. This usually indicates a suction-side leak, or on the pipes that bring water from the pool.

With the filter pump on, the plumbing on the suction side is under vacuum.

Air can be drawn in through otherwise leaking voids. You may notice air in the pump basket if you have a clear lid , air bubbling out of the return lines, or air repeatedly built up inside the filter tank. Use tape or a pencil to mark water levels. This does not rule out leaks in the plumbing, but turns a suspicious eye on the shell of the pool, looking for cracks in the plaster or tears in the vinyl. Look closely at the tile line and look real closely inside of the skimmer s. The most common leak we fix is a separation between the plastic skimmer and the concrete pool.

This is easily fixed with some pool putty. If you see something that looks like a crack, drop some test dye near it with the pump shut off and water still to see if the dye is sucked into the crack.

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Under water lights can and do leak as well, especially the conduit that runs from the light niche to the junction box. Filling the opening of the conduit in the back of the light niche with pool putty , black butyl tape , or using a cord stopper are ways to fix this problem. Look closely at the filter, pump, heater, and valves.

Check the ground for moisture. Turn the pump on and off looking closely for spraying water when the pump is turned off. A small drip or two will not be the source of the leak. You may be able to close the skimmer valve and allow the water level to drop below the skimmer , running the pump on the main drain. If the water continues to drop, we can rule out the skimmer although there can always be more than one leak. When the water stabilizes at any specific level, dye test and inspect around the pool very carefully, at that level.

Look for small debris which may have been sucked into the crack or void.

Pool Leak Detection

This is a good indication of a leak. If the water stops at a wall fitting, wall step, or pool light, give it a good close look. Shutting off the pump, and plugging the drain, skimmer and return lines with expansion plugs , is another test, to rule out the plumbing. Take a walk outside the pool deck and between the pool and the equipment pad.

Evaporation Test

Check for wet soil and eroded areas. If so, there are special considerations. Look for sinkholes where sand under the liner may have washed away. Look for tears or separations around all fittings: skimmer, returns, cleaner line, steps, pool lights , main drain etc. Pay close attention to steps and corners, where the liner may be stretched more than normal.

If an animal had the misfortune to fall into your pool you may notice claw marks tears just below the water line. Spending time under water with a mask may be required to find a small leak in a vinyl liner. When pool liners become old they may develop pinhole leaks easily.


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Or use the EZ Patch 28 clear sealer, or Anderson Flexible Sealer , which are gels squeezed from a tube, and smoothed over the area with your fingers. Place a bucket of water beside the pool and mark both the water in the bucket and the pool water level.

How to find a pool liner leak without getting wet with a snake catcher

Wait 24 hours then check the loss of both. If the pool loses more water than the bucket, then you have a leak. It does happen occasionally, that a leak occurs at a pipe connector under the pool deck, or beneath the skimmer, but repair rarely involves a backhoe.

Swimming Pool Leak Detection and Repair () - Swimming Pool Leak Detection and Repair

To determine if the pipes are leaking, the simple way is to shut off the pump and plug all the lines. After 24 hours of running your pump, go back and measure the water loss of your bucket and pool again. Is it greater than the water loss you had the first time when the pump was turned off?

But if the water loss is the same as the first test, then you can safely limit the location of the leak to the inside of your pool. But in order to do that effectively, you have to know where to look. Thanks to the bucket test, you now have a general idea of where the leak is coming from. But in order to get a precise location, there are a few more steps. Luckily, this part of the pool leak detection process is pretty simple, and mostly a matter of elimination.

The Ultimate Guide To Finding & Fixing A Swimming Pool Leak

Does your pool always leak? With both equipment on and off, and lines plugged and unplugged. Check for deep cracks in the pool shells, tears in the vinyl, and worn out sealant between the skimmer and the concrete. Check the ground around your equipment pad for moisture and large puddles. Also check for steady leaking coming from inside of the equipment itself, like your pool pump, pool heater, and pool filter. NOTE: If you want to rule out plumbing leaks , then plug all of your lines, turn off your equipment, and wait 24 hours.


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Now that you have a list of areas to check for leaks, the pool leak detection dye test will confirm which ones are the real sources. To start, follow these steps:. NOTE: all of the above products can be used both wet or dry.