QA

Question: How To Tell If Pool Main Drain Is Leaking

Diagnosing Leak In Main Drain First thing you need to do, is verify that your main drain line is leaking. We do this by removing the main drain cover, plugging the line with a special extra long plug, and pressure testing the line. If your line won’t hold pressure, it is definitely leaking.

How do I test the main drain in my pool?

For testing only the main drain pipe for instance, cut the main drain and skimmer pipes (all of them), so you can move the suction manifold pipes out of the way. Then push on a SlipXFPT female adapter onto the cut pipe(s), and screw your pressure testing stick into the FTA fitting.

Where do most pool leaks occur?

Look closely at the filter, pump, heater, and pipe valves, which is where leaks often tend to occur. If you have a vinyl pool liner, look for tears or separations around the fittings, lights, steps, and corners.

How do I know if my main drain is working?

Multiple plumbing fixtures in your home clogging or backing up at the same time is a telltale sign of a sewer line clog. If you notice when you flush the toilet that water backs up into the shower, you likely have a mainline clog.

Can pool main drain get clogged?

A pool’s main drain can become clogged with debris. Your swimming pool’s main drain requires regular maintenance. Although the rest of the pool’s parts, such as the filter, may seem to be working just fine, the drain is always at risk of getting clogged.

Can the main drain in a pool leak?

So, if you see that you pressure quickly drops to 2 psi, it’s likely that there’s a leak in the main drain line somewhere between 4′ – 5′ under the water level of the pool. So, if a leak is still suspected in the main drain line, it will have to be inspected by fully pressurizing the line with a plug in the main drain.

What is the purpose of a main drain in a pool?

The main drain for a pool is a suction port that should be located at the deepest point on the pool floor. A main drain is responsible for aiding in the circulation and filtration of the pool water. Having a properly working and dedicated main drain line can also allow you to fully drain your pool if necessary.

Are pool main drains necessary?

Main drains are not required in an inground swimming pool, however, they are strongly recommended and can be extremely useful in some circumstances. This is useful when replacing your pool liner. Main drains are also helpful in the filtering of water and dirt from the bottom of the pool.

Why is my inground pool losing an inch of water a day?

If your pool lost water overnight and it is more than the quarter-inch due to evaporation, you probably have a leak. Evaporation accounts for a minor amount of water lost each day. Losing a half-inch or more overnight indicates a problem.

Is my pool leaking or evaporating?

If the water went down a similar amount in the pool as well as the bucket, then you lost water due to evaporation. If it went down more in the skimmer and not much at all in the bucket then you have a pool leaking. If the pool loses water only when running, it indicates a leak on the pressure side.

How much water loss in a pool is normal?

On average, swimming pools lose about a quarter of an inch of water each day, yet variations in wind intensity, humidity and sunlight can drastically change water loss rates. Some of the strongest and most intense wind in the country can be found in mountainous regions.

Can a pool leak cause foundation problems?

The leak could be from the pool itself, or from underground plumbing that may have developed problems. Soil expands and contracts depending on its moisture content, and this expansion and contraction can cause the foundation of a pool or a home to shift and become cracked or damaged.

Should the main drain valve be open or closed?

Normal operation of the pool requires this valve to stay closed. These are “3-way” style valves. From left to right, they are SPA MAIN DRAIN, CLEANER, SKIMMER, and POOL MAIN DRAIN. For the cleaner to operate at maximum efficiency, only the skimmer and cleaner valves should be open.

Can you snake a pool drain?

Also, do not try using a plumber’s “snake.” A snake typically doesn’t work on pool pipes because pools use 90-degree elbows and house plumbing uses 90-degree “sweeps,” which allow the snake to round the corners. Also, a sewer-line snake should not be used on a pool for sanitary reasons.

Should I drain my pool to clean it?

Even with proper and regular pool maintenance, it’s often necessary to drain your pool — completely or partially — every 3-5 years. Draining your pool often isn’t necessary, especially if you’re following a proper and regular maintenance program.

How do I know if my hydrostatic valve is leaking?

What are some observable symptoms of a leak? ​​​​​​ Your pool loses more than a ¼ inch of water a day. There are cracks in or around the pool deck. You need to add water more than once a week. If you have an autofill, your water bill increases. Grass around the area is soggy. Your pool deck is sinking or lifting.

Should I Use main drain or skimmers?

Skimmer Vs. Drain. If the pool receives a lot of leaves and other debris, more suction may be required at the skimmer than the main drain to adequately strain debris floating on the surface. Conversely, if dirt on the bottom of the pool is the principal contaminant, more suction is required at the main drain.

Do fiberglass pools need main drains?

You do not need to drain your fiberglass pool for dirty water, a new home, or a foreclosed or abandoned home. If you do need to drain it, hire a professional. Make sure to check the groundwater, brace the pool, and have a sump pipe and gravel backfill.

Where is the main drain in an inground pool?

An inground swimming pool’s main drain is located in the deep end of the pool. A main drain circulates the pool’s water by pulling water off the bottom of the pool and sending it to the filter.