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pressure

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  1. A

    Mains water pressure and water softener/ leaking manifold

    Good morning I installed a Harvey’s water softener recently. Have a semi detached property with 3 showers and a 2 toilets with a mega flow cylinder 25mm mains pipe work with 22mm onwards. I put the softener before the prv which was pre installed with the unvented cylinder as the rep said...
  2. R

    Boiler hot water issue & water pressure issue upstairs. please help!

    Hi everyone, New here & my first post! I have a Worcester greenstar 24i, it is a conventional boiler, it has a water tank upstairs. For the past year the hot water when turned on was intermittent. I repressurised the expansion vessel to 1 bar and the hot water switch when turned on worked...
    • Riddy95
    • Thread
    • boiler hot water pressure water
    • Replies: 26
    • Forum: Boilers
  3. SteveRobert5a

    Megaflo temperature/pressure valve won't open

    Good morning! I have a dripping tundish, so decided it's time to replenish the air gap in my Megaflo - something I've done from time to time in the past. So I've turned off the water, opened a hot tap, and then tried to open the pressure relief valve on the Megaflo. But it's stuck: the plastic...
  4. F

    Pressure issues Ideal Logic Combi 30

    Hi, We have a new Ideal Logic Combi 30. A radiator today came off the wall and developed a leak. Plumber came and fixed (but didn't). At that time the boiler was fine. Today the boiler has lost pressure. I have followed the videos on yt and nothing works. Just stays telling me F1. I have...
    • FrankMcg
    • Thread
    • combi ideal ideal logic logic pressure
    • Replies: 6
    • Forum: UK Plumbers Forums
  5. D

    Uneven Shower Pressure

    Hi, we were getting uneven shower pressure and fluctuating temperature from the shower. A plumber advised that we replace the shower which we did. The temperature is now good but the water pressure is still uneven. We get mains pressure for about 2 minutes and then the pressure drops right away...
  6. D

    Uneven Shower Pressure

    Hi, My tenants were experiencing uneven pressure and temperature from the shower. Plumber advised that we replace the shower which we did. Now we have good temperature but the pressure is still uneven. The shower starts full mains pressure then after about 2 minutes it drops right away and there...
  7. A

    mains pressure lower than minimum combi system pressure

    We have a vaillant combi boiler that over ~ 2yrs loses a bit of pressure, and recently after 2 weeks away and no use the system would not fire and errored with F75. We attempted to refill, but the mains pressure is only 1.0bar, and the combi needs more than that to light. I ended up removing...
  8. Mandarin

    Low cold water pressure in only one part of the house :(

    This is doing my head in, so I am turning to the experts here for any wisdom... In the last couple of days I have very low cold water pressure in my downstairs utility room and downstairs bathroom (they back on to each other). The main cold feed (kitchen tap) is normal pressure. And all the...
  9. R

    Will shower pressure be less if switch to an unvented HW cylinder?

    Hi, am getting our bathroom updated and local company suggested ditching our traditional attic CW tank/vented cylinder and pump for the shower and install an unvented pressurised HW cylinder instead. We have been told that this will not lead to a drop in effective pressure from the shower. Is...
  10. B

    Elevated moisture on floor despite pipe pressure test ok

    Hi. I had a pressure test done on the toilet connection tap. Test showed no leak. However, thermal imaging showed elevated moisture levels around the tap (& toilet (on the floor). I am wondering if it is possible that there could their have been a long time (ie years) slow leak from the pipe /...
  11. Z

    Low gas pressure during boiler full load test

    Hi, I am a homeowner but caught between a rock & a hard place. I am trying to get a Vaillant ecoTEC 630 plus serviced but the gas safe engineer & Vaillant engineer say one thing, whilst the SGN engineer says another. I do not know how to proceed and would value some informed advice. The rock...
    • z2chris
    • Thread
    • boiler gas engineer pressure
    • Replies: 8
    • Forum: Boilers
  12. MichaelO

    Water supply line pressure: one too low, one too high

    Two connected houses in our 70s condo development, everyone served by one water meter at the road. 833 has 40 lbs of pressure while attached house 835 has over 100 lbs. -- no problems in either house or immediately outside -- and no pressure relief valves or shutoffs. Plumber traced the...
  13. I

    Combi boiler question regarding usage with no pressure

    Hi, just a quick question. Do I need to fill my combi boiler to run it for hot tap water only? I'm planning to drain the system and leave it drained a while so I can decorate and change some pipes and rads.
    • Iwillhaveago
    • Thread
    • boiler combi combi boiler pressure
    • Replies: 1
    • Forum: Boilers
  14. N

    increased pressure to external tap

    Last summer I used one of those kits to fit an external tap , all went well , still good , its one of those flexi pipe , self cutting tap jobs , doesnt leak , all seems good, However , I would like to increase the pressure , I know those self cutters only cut a very small hole in the copper...
  15. A

    Water pressure reduced when other appliances are on

    Hi all - hoping to get some advice here on a plumbing issue in our house. When we are showering / filling the bath and another appliance draws water (toilet cistern filling after flushing, tap being turned on or washing machine filling etc), the water pressure / flow to the other appliance...
  16. D

    Best options for finding a CH pressure leak

    I have a pressure leak on my CH system. Our piping is buried in the walls (maybe a mistake) and the room-to-room pipes are now covered by flooring making it difficult to detect any leaks if there is no yellowing happening on the ceilings below. We have noticed that we need to top up the system...
  17. C

    Water pressure for block of flats

    Hi, I will try to explain best I can, please bare in mind I am currently in a learning stage so just trying to understand the process behind things. A building with three floors and 69 rooms. How do you work out the pressure needed on the hot water system? I’m sure there is a calculation to...
  18. P

    System losing flow/pressure

    Hello everyone, I have a problem that has stumped two plumbers so I thought i'd come to a forum to see if anyone out there has had a similar problem. I live in a top floor flat with its own water supply. The tap in the kitchen has 12litres per minute flow (near where the water enters the...
  19. R

    UFH loss pressure 0 when off

    Just recently installed UFH .When all radiators and Ufh are on pressure normal floors are warm radiates are warm .When anything is turned off pressure drops to 0 with Worcester boiler flashing I have isloated it to the UFH and not boiler or radiatets could this be anything other than a leak...
  20. Z

    Faulty pressure gauge?

    Hello. Today I have installed a new radiator upstairs. A little bit bigger so I had to make new pipe work. Before that I flushed as much water from heating system as I could. Only one leg (3 legs downstairs) had valve which allowed me to flush water from radiators upstars, all of them. Only 3...
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