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Discuss Accumulators? Simple??? in the Plumbing Forum area at

  1. spikewt

    spikewt GSR

    Are accumulators as simple as redirecting the mains from the unvented cylinder thru the accumulator then back into the pressure reducing valve to the cylinder giving equal pressure accross hot and cold??
    Or am i missing something?
  2. PlumbBobBob

    PlumbBobBob Guest

    it's so you can boost the pressure by use of a pump on the mains i think
  3. spikewt

    spikewt GSR

    Im looking at one without a pump. Iv got 3 bar and 14 lmin but it on 15mm mains. Looks to me like you jus run the mains thru it to the accumulator. With non return valves.
  4. secret squirrel

    secret squirrel Guest

    I made a few enqs on these a while ago. Can't remember the company but they were very helpful. You have to connect it to the mains after the kitchen tap. You then need to set the pressure at whatever the highest pressure of the house is. you need to test the pressure at varying times of the day. if the highest pressure is 2.5 bar then you can set it at 2.5. That is the pressure you'll get. Apparently.
  5. SafeGasInstall

    SafeGasInstall Plumber GSR

    mains in to acumulator mains out to pressure reducing valve and then to unented cylinder ,the job of acumolator is to maintain same pressure during peak and off peak hours ,works good the one i fit could not adjust it but did good job
  6. BLOD

    BLOD Plumber GSR

    They are just a large expansion vessel (for potable water)
    I've fitted a few with good results, main problem I've found is having a space large enough to install them.

    I haven't fitted the GAH one's but they have a decent diagram on the link below
    Last edited: Jun 10, 2011
  7. spikewt

    spikewt GSR

    Thanks blod. Thats the sort of thing iv been looking for. I had it in my mind roughly how that looks. In gonna get a horizontal one an stick it in the loft i think. Ill lift all the insulation from under it an jus lay it over so it shouldnt freeze.
  8. BLOD

    BLOD Plumber GSR

    If you've got a small loft hatch you can fit smaller ones in series. Advanced water have a good selection of different sized ones.
  9. stevetheplumber

    stevetheplumber Plumber GSR

    i was told recently these dont comply with water regs as they are effectively a dead leg
  10. BLOD

    BLOD Plumber GSR

    I'd agree they are a dead leg, but would that then mean all the unvented cylinders fitted with expansion vessels don't comply with regs either ?
  11. mutley racers

    mutley racers Plumber GSR

    Great link
  12. Riley

    Riley Plumber GSR

    Cheers Blod really really plain and simple
  13. Megaflo-Experts

    Megaflo-Experts Plumber GSR

    Yes, that's correct. It will store and delivery water at your static pressure. i.e. 3 bar.
  14. Megaflo-Experts

    Megaflo-Experts Plumber GSR

  15. Worcester

    Worcester Plumber

    Just checked back on the TWS siste - any one found where the demo has gone? The website has gone all consumer instead of technical ./ installer, and I don't see that wonderful graphic that they used to have :)

    Got one we need to install for a farmer.
    • Creative Creative x 1
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