Water Tank Chlorination Services | Water System Chlorination

Environmental Fabrications have been carrying out water system and water tank chlorination works for over 10 years. Water tank chlorination is an essential part of legionella prevention, in conjunction with a good water hygiene program. There are a number of different water system and tank chlorination methods including gravity feed and direct injection.

The standard method for water tank chlorination is to dose the header tank with sodium hypochlorite, to a chlorine level of 50ppm. This solution is then run through each system by opening the relevant taps and valves. The water system chlorination is complete after leaving the solution in the system for one hour. A water system sample is taken to check there is no dramatic drop in chlorine levels, if so the process is repeated. The water tank is then drained and filled with fresh water, this water is then used to flush through the system and remove the chlorine.

For closed systems such as mains feed, the water system chlorination is carried out using a drum and mobile dosing pump. The procedure used is the same as the gravity feed, only the drum is dosed instead and the pumps are used instead of gravity.

Water system and water tank chlorination can be carried out with other chemicals, such as chlorine dioxide, which is more effective against legionella and bio-films. Water chlorination chemicals can also be neutralised, saving large amounts of water and in turn cost. To discuss any requirement you may have for water chlorination, please call our offices on 01142 788777.