How to Find and Fix a Swimming Pool Leak

Having private swimming pool at home is a thing. During summer, you can relax nearby or in the pool without being disturbed by strangers. Unfortunately, it is not that easy and simple to have a swimming pool at home. The fact that many problems may occur, leak becomes one that makes you overwhelmed. Once it happens, you have to know how to find and fix a leak in your pool.

Leaks possibly occur anywhere in your pool. It usually needs extra time to detect the leak, however, it does not mean impossible. How to find and fix a leak in your pool should be done properly to get the best result.

Before searching the leak, begin with checking your filter system area. This includes a filter, heater, pump, and chlorinator. For inground pool, the leak may be caused by cracked pipe underground.

How to Find and Fix a Leak in Your Pool with the Bucket Method

Leak pool test using a bucket /

Before beginning the searching process, it is necessary to determine whether or not the water runs out because of leak instead of evaporation. To make sure the leak, you have to conduct bucket method test. It helps you determine whether the pool leaks or the water level just decrease due to evaporation. Follow these steps to do the bucket method:

Get and fill a bucket

To begin the first method of how to find and fix a leak in your pool, you need to find a 5-gallon bucket and place in the water. The perfect location to place the bucket is on the second step of pool steps. Fill with water until it matches the water level of the pool. Use duct tape of marker and put inside the bucket to mark the level.

Turn off pump

After placing the bucket, you can move to the second step. Turn off any pump in your pool, whether it is recirculating pump or auto-refill device. The purpose is to find out how much the water level decrease. This is necessary before jumping to the steps of how to find and fix a leak in your pool.


Wait for 24 hours to see whether the water goes because of leak or evaporation. After 24 hours, you can compare the water level in the pool to the basket. If you see a slight decrease, it means the pool loses water because of evaporation. However, if the pool shows lower level compared to the basket, it means you have a leak in the pool so that you need to know how to find and fix a leak in your pool.

Locating a Leak in Your Pool

A man in a diving suit trying to find leak in the pool /

After determining that your pool gets a leak, this is the time to find out how to find and fix a leak in your pool. First of all, you have to find the location right away. It is actually not that easy to do it by yourself. However, there is always a way to fix the problem without calling the professional in the first place. The so-called Ink Method helps you find the leak location. Follow these steps:

Drain the pool

Whether you want to drain it manually or with pump, you have to drain the pool. Actually, it is easier to let the pool drain by itself because it helps you locate the leak. If the position is at the bottom, the pool will drain.

However, if the leak comes from the wall, you can let it drain and wait until the water stops draining. When it stops, you can find the location along the wall where the pool stops draining.

Check for wetness

The next step of how to find and fix a leak in your pool is to determine the area. If you already know the estimated location, check for the wetness. The leaking area will always be wet. Randomly observe the surface on suspected location.

After finding the wall that you think the leak occurs, you can use dye or tint to make sure the leak.

Pinpoint the leak

Move as smooth as you can so that you will not disturb the water. Squirt dye or ink near the suspected location. You will see the ink or dye move towards the leak in a slow current. This is the reason why you should not move to fast because your movement will disturb the water current.

After finding the precise location, this is the time to fix it.

How to Fix a Leak in Your Pool

Inground pool is usually made of various materials, ranging from concrete, fiberglass, plaster or others. It is recommended to call the professionals or company that make the swimming pool at your home.

However, if you insist to do it by yourself, you have to follow the professional guide for the best result. Fixing leak actually depends on the location and its material. If the leak is small you can try using leak sealer product such as Fix a Leak.

Skimmer leaks

How to find and fix a leak in your pool can be done with skimmer method. This leak commonly occurs in a concrete pool. The leak location is between the concrete pool and plastic skimmer. This kind of leak is considered easy to fix with pool putty.

Light Leaks

The fact that conduit pipe often comes apart or separate from the niche, it may cause the leak to your pool. How to find and fix a leak in your pool with this case, you have to be more patient. Leaks caused by this problem is rather difficult to fix.

You have to patch the conduit connection to fix the leak. Some choices that you can use to get rid of this leak is by using epoxy with silicone, putty, and caulk.

Liner leaks

This is considered as the easier way to fix leak problem. Not surprised if the liner is mostly chosen when it comes to how to find and fix a leak in your pool. You only need to patch the leak area with vinyl liner patch. If you have to do it underwater, you can use wet patch kit.

Once you use a vinyl liner, it is not recommended to drain the pool entirely. Exposure to air may cause the liner brittle.

Maintaining a pool is easier said than done as it requires a significant amount of effort and money. In this article, we will guide you on how to find and fix a pool leak.

Signs of swimming pool leaks?

How to find and fix a pool leak? Well, you need to know what pool leaks are first. Pools appear with different shapes and sizes and have to face with thousands of gallons of water days after days. That means the leakage or even the damage happens to the swimming pools is an obvious consequence. If you- the owner pools do not know the way to realize the signs of swimming pool leaks to have timely response solutions, it undoubtedly costs lots of money for you. Naturally, the pool leak is not always obvious and it’s a mistake when most pool owners wait until the leakage occurs clearly and they start to fix it after that. Hence, concentrating on these signs to distinguish the pool leak is necessary:

    An unusually high water bill: as usual, your water bill remains at a constant rate, but suddenly, you are so surprised at looking an unusually high water bill, the main reason for this surely comes from your pool leak.
    You cannot maintain the pH in your pool: it is true that if the pH changes regularly, it may be a sign that your pool has a leak.
    The automatic filler cannot stop: it is better for you to pay regular attention to your automatic filler because if it never stops running, the big problem of the pool leak is taking place.
    Mushy grass is an essential sign of pool leak: Normally, if there is a mushy grass in your pool, it is an obvious evidence to help you realize your swimming pool is attacked by the leaks. In fact, this mushy grass does not mean that it’s a kind of camouflage that leaks out there.

How to find the pool leak?

Losing water occurs days after days at the swimming pool with all kinds of the pool types. The main cause of this problem may come from the normal evaporation and even the existence of the leak containing inside and outside the pool. Overcoming the problem of water leaks in the pool is a necessity, however, before making a phone call to professional pool repairers, you – the pool owners can do these simple tasks so as to self-repair your pool and save up a considerable amount of money. When it comes to the ways to find the leak in the pool, 3 essential tips mentioned below is considered as the 3 premium solutions that most of the swimming pool owner should equip themselves!

a) Using buckets of water to locate leaks


Equipment to be prepared:

    The plastic bucket of 5 gallon ( it is better without a handle)
    Painter’s tape
    Pool water

How to do it:

    Fill the 5-gallon bucket with pool water and place it on the step of your pool. (It is recommended to place this bucket of water on the second step.) Remember that the water onto the bucket is equal to the amount of water in the pool. And then, use the painter’s tape to mark the level of water in the bucket and in the swimming pool.
    Turning off the recirculating pump as well as any other auto-refill device you have for your pool. (This step is to be sure that the level of water is kept stable at the time of marking in order to come to an exact result).
    Checking the result after 24 hours: Now, if the water level onto the bucket matches the water level of the pool, this means your swimming pool is losing water due to the evaporation and it is a normal phenomenon. Whether by contrast, the water level of the pool and the level in the bucket is much different, it is not a normal thing, it is surely a leak!
    To delineate the scope of leaks, you may repeat the process of this test for another 24 hours, but now with the turning on of the pump. At this time, if the water level in the pool is higher than the water circulating under pressure, the leak is certainly somewhere in the plumbing of your pool.

b) Exploring leakage holes thanks to the electrical and filtration systems

With leaky suspicions involving power supplies and the filtration, you had better check at the electrical conduit lines that lead from the pool’s lights for moisture or leaks. Is there any water on the wires? If there is, contact immediately with a professional to locate the position of the leak and fix it quickly.

Moreover, turning off the filtration contributes to finding out the place of the leak. Checking around all pipes, fittings and the pump for moisture to make sure that there is not anything leaking. If there are some, you may be able to replace a new thing by yourself or you want to make sure, it is a good idea to call a professional.

c) Searching for the leaks in a vinyl liner with the ink method

Equipment to be prepared:

    A pair of swimming goggles (in case you need to dive into the pool to find out the leak).
    A snorkel ( for those who desire)
    Safety ink ( maybe the ink used in the food processing)

How to do it:

    Maintaining the water level in the pool to discover the leak which may be to be found at the bottom of the lake.
    Taking much attention to the pool’s floor to see whether it’s squishy so as to realize a leak.
    Wherever you suspect a leak, pour a few drops to find the clues. (You may continue this way at any corner of your pool until you find the leak.)

Here is a wonderful dye tester that each swimming owner should have:


Anderson Manufacturing FT601 Dye Tester Pre-Filled 

How to fix the pool leak?

There is a variety of methods to fix a pool leak but for us, the Fix A Leak Pool Leak Sealer – 32 oz is the most effective way to cope with the leak in the swimming pool.


Fix A Leak Pool Leak Sealer




Below is the step by step introduction to help you clearly understand the way to apply this best products to your pool leak:

    Shake well before using: as you can know, this Fix-a-leak is a blended concentrated material used to seal the leak virtually. So, this shake step before use is really important so that the mixture is mixed again before use.
    Open the skimmer and the sump valves
    Select recirculate by-passing the filter : before starting pump switch to manual operation, with the pump off,
    Turn on the pump: this step is to prepare a suction hose for the leakage.
    Pour the Fix-A-Leak solution into the skimmer: in some cases, if it is not easy to pour the solution, you can use a special kind of bottle like a ketchup to help you pour the liquid into the skimmer conveniently.
    Sweep into sump drain for 48 hours, every 4-6 hours: Because the Fix-A-Leak is a very heavy material and it may sink to the lowest point immediately, the usage of a pool broom or even mechanically with an automated pool cleaner is surely important.
    Checking the result: after 48 hours, set to normal filtration.
    Repeating the procedure if it is necessary: you can even continue this process until the leak has stopped. To make sure the leak is fixed, it is a good idea to repeat the marking of water level in the pool and check for 2-3 days.

If you still find it is a bit complicate to follow the instruction, this video will properly instruct you the way to use the Pool Leak Sealer:


A+B Epoxy 9904K White A+B Rezolin Epoxy Kit




Below is a very useful video instructing the way to find out the leak and apply the A+B Rezolin Epoxy Kit to fix the leak:


HydroTools By Swimline 4-Ounce Vinyl Pool Linear Repair Kit


Jed Pool Tools Inc 35-242 Pool Liner Repair Kit

With plenty of meaningful information recommended about the ways to find out the pool leak and the step by step introduction of the procedure in order to deal with these pool leaks, we hope that you will find now it is so simple to detect any types of the pool leak as well as to follow the procedure to repair these unexpected leaks. Obviously, searching for the problems happening to the swimming pool and facing up to these kinds of problem is not an easy task, and even costing you a great deal of money if you have no knowledge about the swimming pool.  Thus, we also suggest some premium products to help you fix your pool leak.

Among them, the Fix -A- Leak Pool Leak Sealer – 32 oz is head and shoulder above the rest! Thanks to the superior functionality and clear introduction in use, this product becomes the best choice of many pool owners. If you have any questions regarding how to find out the pool leaks and how to fix those leaks, do not hesitate to leave the comments as well as share the problem, our consulting team will quickly update and support the necessary solutions for you.