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Electric Shower Low Water Pressure.

Eccles-on-Sea, or nearly covered by the sea. There exists at Eccles a remote shanty town and many holiday "chalets." The water supply is just about o.k. to allow the use of an electric instantaneous shower at most times. BUT, at high season at peak times of use, the water pressure drops very low and the showers will not work due to low water pressure. Apart from building a high water tower at each chalet, what is an economical practical solution to the problem per chalet? Some are let out and guests like to shower regularly and not have to wait until night time. Some chalets have flat rooves and no "loft" space for a tank.

Z.

Parents
  • The Water Supply and Fittings Regulations 1999, state that you can boost mains water for domestic use with suitably small pumps, as long as the final pumped mains water flow does not exceed 12 litres per minute (l/min). In cases where a household does experience a flow rate much lower than 12l/min the incoming mains water flow can be usefully increased using a mains booster pump. Screwfix and others do a number of WRAS compliant pumps designed precisely for the purpose.

    Larger pumps and supplies to multiple properties require the express consent of the water supplier  along with a whole list of other things, like baths larger than 230 litres, bidets with flexible hoses, pools and so on - all in section 5 and the associated table.

    Mike

Reply
  • The Water Supply and Fittings Regulations 1999, state that you can boost mains water for domestic use with suitably small pumps, as long as the final pumped mains water flow does not exceed 12 litres per minute (l/min). In cases where a household does experience a flow rate much lower than 12l/min the incoming mains water flow can be usefully increased using a mains booster pump. Screwfix and others do a number of WRAS compliant pumps designed precisely for the purpose.

    Larger pumps and supplies to multiple properties require the express consent of the water supplier  along with a whole list of other things, like baths larger than 230 litres, bidets with flexible hoses, pools and so on - all in section 5 and the associated table.

    Mike

Children
  • So, I wonder what happens if a dozens chalets on the same mains' water pipe supply all turn on booster pumps at once?

    Z.

  • I guess the moment someone without a pump turns a tap on, then air will be sucked into the system, and the chalet owners will be left trying to sort out airlocks in the system.

  • well the line pressure will drop, but the approved pumps stop sucking when it drops below atmospheric. The most you can do with an unrestricted pump is to reduce the line pressure to vacuum, or approx -10m head.

    Mike,