Cold Water Store

The vessels that allow us to store our cold water is called a tank or cylinder. Its size is worked out by the demand for water it will need to meet which could also include the supply of water to the hot water cylinder. These cisterns are really modern and are now made from a black plastic rather than galvanised. The plastic helps to make them durable, light and semi-flexible which is great for fitting in aloft space. They also resist the formation of algae. Insulating the cylinder will prevent freezing, but it also keeps warming of the water to a minimum. Fitting of these types of cisterns can be carried out by professionals such as Chessington Plumbers.Position:Plastic cisterns are quite flexible so the base needs to be fully supported. They should not be put so they span joists with no solid platform. The weight of water could distort the cistern with potentially disastrous consequences. The cisterns outlets should be higher than any of the draw off points for fittings and appliances.Cistern Inlet:The water supply to the cistern is by the use of a valve called a ballcock or ball valve. This will be a diaphragm type valve. This valve discharges water from the top allowing an air gap to prevent backflow. This enables the cistern to fill and shut off automatically according to the water level. Outlet.The outlet connection from the cistern is normally close to the base or even underneath. The Inlet and the outlet should have shut off valves to isolate the cistern. The inlet is usually a plug valve type. The outlet will normally be a regular gate valve.Overflow.An overflow is fitted to cisterns above the maximum water level but below the inlet in order to maintain the required air gap. The pipework runs downhill so that water flows freely down it and out through an outside wall. The pipe should be insulated and protected with a mesh screen to stop insects and dirt entering the system. The pipe is usually 19mm. If you have any doubts about your ability to carry out any plumbing work you can always call an expert like a local Chessington Plumber for advice and guaranteed work.

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