There are two types of pool, domestic and commercial, where domestic pools are constructed for individual usage and the commercial ones being pools installed for public use like the case of schools, hotels or even municipal installations. These can further be classified as “free board”, “deck level” or “horizon” based on the circulation system.

“Freeboard” is the standard pool type with the water level 50 mm to 100 mm below the top of the wall tiles and a surface skimmer to remove leaves and other floating debris.

“Deck level” level pools have a peripheral overflow channel and a balance tank. When the pump I running, water is taken from the balance tank and pumped into the pool until it overflows into the channel and then back to the balance tank.

“Horizon” pools are a variation on the deck level concept but without the peripheral channel The top of the pool wall where the water will overflow is built 50 mm lower than the rest to create the “horizon” effect.