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  1. colum

    fire flow requirements

    I am working on a Preliminary Report for a water supply scheme, mainly rural in nature but with some villages. I am trying to find some definitive guidelines in relation to fire flows, i.e. what fire flows to provide in villages and rural areas, how long the fire flow should be available, at...
  2. colum

    ventomat air valves

    Hi, does anyone have any experience of using the ventomat air valves as a surge protection system, instead of using the standard surge vessel and compressor etc? All of the information I have been able to find so far is supplied by ventomat themselves and I was hoping to get some independent...
  3. colum

    leakage in water supply pipes

    Doing some work on water distribution networks and just wondering if there are any 'rules of thumb' regarding economical levels of leakage. I know leakage can be expressed in %UFW, l/prop/hr and l/km/day, with each being more suitable for differenct types of network, e.g. urban vs. rural. It...
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