Underwater Pool Leak DetectionAs Swimming Pool Leak Detection Experts we aim to write about swimming pools, filtration systems and how pool leak detection works in laymans terms, helping you to carry out some DIY pool leak tests and gain a deeper understanding of your swimming pool system.

All swimming pools are constructed and operated on the same principle.

In other words, regardless of the shape, size, and additional features; the functioning of all pools is basically similar. They all use a combination of chemical treatment and filtration to keep the water clean and healthy at all times.

In this post, we’ll be looking at the filtration system and how it works. Usually, the water filter is used to keep algae and other hazardous contaminants at bay.

Here we go;



You can’t have a swimming pool without a pool filter. Filters free the water from visible debris and invisible contaminants. These include micro-organisms from infected swimmers, disease-causing pathogens, tiny insects, food particles, saliva, sweat, urine, fecal matter, among other things.

Pool filters can also hinder the growth of algae and bacteria.

Here are the major types of pool filters

Swimming Pool Leak diverThere are three main types of pool filters, namely; cartridge, Sand, and Diatomaceous Earth (DE). Here is a description of each;

Cartridge filters

These are commonly used for above-ground pools. They are the easiest to use and maintain. They filter by holding dirt particles and debris in the cartridge, before passing the clean water back into the swimming pool. You can open up the cartridge when it’s too dirty, cleanse it with a hose and reuse it. However, it’s important to replace the cartridge periodically, at least once per year.

Diatomaceous Earth (DE) filters

Cover the filter with DE. The DE gets rid of the tiniest dirt particles, as small as three microns (too tiny for the naked eye to see). DE system ensures that the water is super clean because it involves manual cleaning and backwashing. You need to add the amount of DE in each filtering session.

Using the DE filter is easy and straightforward; put in the DE powder to the pool filter, this powder contains microscopic diatoms skeletons, a form of algae. In a sponge-like effect, the powder absorbs debris and dirt particle from the water passing through the filter. The skimmer box is used to sift out the dirt and debris.

Sand filters

Sand filters function by passing dirt water through a sand filtration system. The particles are trapped in the sand, and clean water returns to the pool. When the sand gets dirty, it calls for a backwash. Backwash means running the filter in reverse to remove excess debris. You can recycle the same sand for at least five years. You can also use glass media in place of sand. Glass media filters filter better and require less backwashing and serves for more years.

Parts of a sand filter;

Importance of balancing the pool water;

The Pool filtration system plays the vital role of keeping your swimming pool clean and healthy. A healthy chemical balance benefits everyone; swimmers, the pool, even the equipment used therein.  An untreated or poorly treated pool is a haven for pathogens and other disease-infested micro-organisms.

Furthermore, incorrect chemical balance can destroy other parts of your swimming pool, including the filters; it also causes the water to turn grey and cloudy, irritates your eyes and skin.

Pool Leakages

Pool leaks are common anywhere in or outside the pool. Before looking for a leak in your swimming pool, ensure you have checked the whole filter system including the heater, filter, pump, chlorinator, etc.

Leaks can also occur in an in-ground pool from cracked underground piping. You must also determine whether you are losing water through leakages of evaporation.  In most cases, the best thing would be for you to contact a professional leak detection company. Only such has the equipment and skills to quickly pinpoint the leak in a non invasive manner.

Filtration System SpecialistsLookout for these Signs of pool leakage;

Why you should NEVER ignore a pool leakage;

Pool leakages are both an inconvenience and a potential hazard. Water escaping from the pool system can easily start accumulating in areas that it shouldn’t.

For instance, chlorinated water can spill off and damage metal components around the pool structure such as rebar covering, shells of the concrete swimming pool and galvanized steel of a vinyl liner pool walls.

Besides, the leaking water can carve through the ground of the pool if left unattended. Over an extended period, the water washes away cement strips from the concrete, leaving only gravel and sand behind. This damages the pool basement.

Like we’ve mentioned, pool leaks are both an inconvenience and a potential hazard. The earlier you get them fixed, the better.

We are your go to company for all your pool leak problems.

We’re professional; we can detect and fix all manner of pool leaks in your home or commercial premises.

Our team of engineers and technicians has state-of-the-art equipment to detect pool leakages without digging the pool area. In some cases, we can repair leakages without excavation.

Call us on 0800 731 3843 to discuss the problem with your filtration system or swimming pool.