How do you link cold water storage cisterns?

Due to concerns about water stagnation which might cause the quality of the water to deteriorate the installation of inter-linked storage cisterns should be avoided wherever possible. Where it is unavoidable, the number of inter-linked cisterns should be minimised.

To minimise the risk of stagnation:

• The storage volume should be kept to a minimum

• Cisterns should be connected in parallel

• Any demand should create water flow throughout each cistern

• Inlet and outlets should be installed at opposite ends of the cistern

• Delayed action float valves should be used

• Metering of inlets may assist with balancing of turnover