Pool sand filters for sparkling clear swimming pool water
In order to keep the water clean and clear, it is necessary to fit a pool filter and a pump. The pool’s mechanical cleaning takes place via the pool filter, which filters out particles down to about 25 µm (thousandths of a millimetre). The central valve on the filter tank controls the water flow through the filter. The filter is 2/3 filled with filter sand, grain size 0.6-0.8 mm. As the dirt accumulates in the filter, the back pressure increases and is read off in the central valve’s pressure gauge. The sand filter is backwashed once pressure increases by about 0.2 bar after the previous backwashing.
Pahlén supplies exclusive pool sand filters for all types of swimming pools.
The pool sand filters are made of fibreglass reinforced polyester or polythene, which makes them particularly reliable. Polythene and fibreglass reinforced polyester are resistant to mechanical wear and tear. The 6-way central valve is made of bronze or ABS plastic, with connections to the pump, pool and drainage. Backwashing the filter is easy - just turn the handle on the central valve. The flow through the sand is now reversed, taking the dirty water out through the valve’s drain outlet.
All Pahlén pool sand filters are equipped with a drainage plug at the bottom for easy drainage of the water, for instance at the end of the summer. The pool sand filters offers effective, easy to use and economical cleaning of your swimming pool.
Pahlén has pool sand filters for both small private pools and large public facilities.
Pool sand filter 350.
Suitable for smaller swimming pools with a water volume of about 10-15 m3 and wood-heated hot tubs.
The filter is equipped with a pressure gauge and sight glass, making it easy to see when the filter needs to be backwashed.
The filter is supplied complete with a base-plate and connecting pipes, and is easy to complete with a pump and heater. Made of polyethylene.