DIY How To

Indirect Cold Water System

There are two types of cold water systems, direct or indirect. Certain areas of the country have used different systems at different times.

Indirect cold water systems

An indirect system is where only the kitchen sink is fed from the rising main, all the other cold water outlets are fed indirectly using gravity from a head tank (cistern), usually situated in the loft. The hot water outlets are also fed from the same head tank.

The advantages using this method are less likely hood of contaminated water getting into the mains supply and because of the reduced water pressure there is less chance of noisy pipes.

The disadvantages are only the kitchen sink should be used for drinking water and due to using the head tank for both hot and cold water storage this tank usually has to be a lot bigger.

Indirect system

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