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Water Pressure, Supply Interruptions, and Pressure Management

The following information is set out to help you during periods of low water pressure or no water incidents.
  1. What to do if you have low pressure or an interruption in supply?
  2. Shared supply pipes
  3. What is water pressure?
  4. What Standards and Responsibilities Apply to Water Pressure?
  5. Fire Sprinkler Systems

What to do if you have low pressure or an interruption in supply?
 
If there is a sudden reduction in pressure or loss of water which we have not advised you of in advance you should first make the following checks:
Shared supply pipes
 
If you share a supply pipe with one or more of your neighbours, the flow of water at your tap may be low when your neighbours are also using water. This will be especially so if the supply pipe is in poor condition, or has too small a bore for the length of pipe. In this case you should consider:
What is water pressure?
 
These key facts explain the core principles of what makes up water pressure:
What Standards and Responsibilities Apply to Water Pressure?
 
South West Water has a statutory requirement to supply water by gravity continuously for domestic purposes at a pressure that will "reach the top of the top-most storey of every building" (Water Industry Act 1991 Section 65).
Fire Sprinkler Systems
 
South West Water guide to fire sprinkler systems



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