Pool Leak Repairs

So You Have A Leak?.


In addition to structural leaks, skimmers, main drains, and return lines are top culprits of swimming pool and spa leaks.

 We not only find leaks using pressure tasting,listening devices and endiscopes, but we can also repair them, many times without draining the pool or spa. 

Before a leak detection or repair is performed, please make sure the water is clean, clear and pool level is full.

Structural repairs

Concrete, vinyl, and fiberglass are the three main types of in-ground swimming pool materials. Each is vulnerable to different forms of leaks and requires various methods to repair.

Structural types

Concrete swimming pool repair

Concrete is porous and should not be used by itself to construct a pool. There must be a water barrier between the concrete and the pool water

Plaster is then applied to not only ensure a smooth touch on the pool surface, but also to create a water barrier. If the plaster is not thick enough, it could allow water to seep through. This will result in water loss that is difficult to isolate without draining the pool. There are methods to repair a pool that is not properly sealed with enough plaster.

Seasonal changes such as freezing and thawing will cause plaster to eventually crack. Winterizing your pool properly will help to keep your pool's gunite/plaster structure intact.

Vinyl liner swimming pool repair

Vinyl liners can leak through the natural deterioration process and environmental exposure. If the vinyl liner has a small puncture, we can locate it and patch it very easily. If the leak has gone on for a long time, you may be in danger of causing greater damage to the liner. A leak or tear in the liner allows water to collect behind the liner causing it to stretch and be pulled from its top edge.

If you suspect a leak in your vinyl liner pool, don't ignore it, it could save you a lot of grief if you act quickly.

Fiberglass swimming pool repair

Fiberglass pools are prefabricated shells that are nearly indestructible. However, they can still be susceptible to leaks.

When a fiberglass pool has a leak, it is important to maintain the water level as the pool shell may "float" out of the ground if the water level in the pool is lower than the water level in the ground around the pool.

In addition, if the water level is too low, the sides of the pool could bulge inward from the pressure of the surrounding soil. A floating fiberglass pool could crack the deck as well as cause massive damage to the pool's plumbing.

Above-ground swimming pool repair

Many above-ground pools will experience leaks in the liner of the pool due to the nature of the exposed structure.

If you are up to the task, some above-ground pool owners are able to find and patch leaks by diving the pool and visually inspecting the lining. It takes patience and diligence to complete, however it is the least expensive way to repair your leaking above-ground pool.

There are several products available at your local pool supply store that will help you locate and patch a leaking above ground pool.

If you are not able to find the leak, Poolschool can detect and repair the leak for you.

Our experienced professionals routinely find and repair leaks in the pool's plumbing system.

Swimming pool plumbing repairs

Leaks found in the pool's plumbing lines and are most often due to corrosion or ground movement. Our experienced professionals routinely find and repair leaks in the pool's plumbing system.

Return lines

The pool's return lines return water from the pump and filter back to the pool. Leaks in the return line, at times, require penetrating the pool suround to gain access to the leak location.

Suction lines

The pool's suction lines remove water from the pool or spa to recirculate the water through the filter, then back through the return lines to the pool or spa. The suction lines begin at the skimmer and the main drain.

If a leak is found in the suction line, the ground around the pool, equipment, or pool suround may need to be penetrated to access the line that requires repair.

Main drain

The main drains are usually located on the lowest point in the pool, so the entire pool surface slants toward them. Most of the dirt and debris that sinks to the bottom of the pool exits the pool through these drains. Like all leaks, leaking main drains need to be repaired as soon as possible. The pressure of the water at the bottom of the pool could lead to massive water loss if the main drain has failed.

Water could drop as much as three feet per day.

Most often, we can repair the main drain depending on the nature of the leak. Draining the pool could cause additional costly problems to occur if a high water table is present. In many cases, we can repair the leak without draining the pool.

We have the equipment and expertise to properly repair your main drain without draining your pool or your wallet.

Pump & filter

Pool pumps usually last for about 8 years before needing to be replaced or rebuilt. In most cases, you should be able to repair pump leaks yourself. For example, leaks that appear in the threading of the connections, are simple fixes you, as a homeowner, can make.

If you need a new pump, contact your local pool supply store to find an installer. If you come across a mystery leak in your pump, or you prefer a professional's expertise, contact Poolschool.

Crack injection

For cracks in concrete and plaster pools, high pressure pump is used to inject flexible polymer adhesive into the offending crack to seal and adhere the crack together providing a flexible water proof bond.

Skimmer replacement

Skimmers usually crack when they become brittle with age or connections may simply fail. A failed skimmer connection could cause the pump to suck air and lose prime. Leaking skimmers can be repaired, but sometimes they need to be completely replaced to eliminate the source of the leak. Once we identify a leak in the skimmer, we will provide an estimate for either its repair or replacement.

Pool suround repair

If the leak in your pool has caused damage to your deck, we find the leak first, and then provide an estimate on the repairs for the leak and the deck. The deck can shift and crack if the ground below has been washed away by a persistent leak.

The best solution in this circumstance is to call Poolschool to evaluate the situation after the leak has been isolated and repaired.

There are times the pool suround needs to be cut to make repairs on the pool's plumbing, skimmer, or autofill.

We will repair the suround, and we always clean up after the work has been performed.

Important Information

We only give Quotations. A Quotation is a fixed price, and cannot be altered. We do not offer to give 'Estimates'; an 'Estimate' gives no guarantee of final price. PoolSchool and its predecessor Deep Blue Pools is proud to have never charged more than our quoted price for works undertaken and we never will.

We offer free advice on pools-related problems.

We supply all your pool equipment and consumables at list price - and we deliver.

We look forward to meeting you soon.

We cover Alhaurin el Grande Alhaurin del la Torre Alozaina  Calahonda Cartama Churriana Coin Fuengirola Guaro Tolox Malaga Marbella Ojen Pizarra Torremolinos Yunquera

Contact Poolschool


Parque Empresarial Coín, Nave 46,

Carretera Coín-Alhama el Grande Km 2, 

29100, Malaga,


Office  :: 0034 - 952 594 393

Mobile :: 0034 - 657 081 514


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