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pressure

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  1. S

    Daily pressure / top up. Combi Logic. help

    I wonder if anyone has any thoughts? Combi Logic 30 Boiler - constant pressure loss - no obvious leaking. Few years ago we got an error code indicating pressure was below minimum. We resolved ourselves by using the manual and topping up per the guide. Sometime later, in some really cold...
    • SteveRPX1010
    • Thread
    • combi logic pressure
    • Replies: 3
    • Forum: UK Plumbers Forums
  2. O

    Flushometer toilet on residential pressure tank

    I'm installing a new well pump, pressure tank, and toilet in a "shed" (note: local code is 2015 UPC based, and shed is insulated & conditioned) For some specific reasons I need to install a wall-mounted toilet. A "typical" well-performing model with an in-wall tank runs > $1000. There are...
  3. B

    Rain/drench shower pressure

    I’ve been asked to install a rain/drench shower head. I know these can be issue with low pressure. Mains at garden tap is 1.5bar, combi boiler in loft about 5m up, then shower on second floor so below the combi. I’m thinking this is 1 bar at the outlet and should be a good pressure for a 250mm...
  4. M

    Pressure booster - dripping sound

    I have a Grundfos Home Booster 3.0 in my rental property. Was installed 3 years ago, I've never been at the house since it was installed and nothing was every reported to me by tenants so don't know if this has been the case since day 1 or an issue.... ..but I hear a constant slow drip from...
  5. J

    Low hot water pressure

    I've had a new Firebird combi oil boiler fitted and the hot water pressure is low( in fact it's terrible)..the cold water pressure is good and I can't find any leaks and loose no pressure. Please help. Thanks alot
    • Jason brad
    • Thread
    • hot water pressure water
    • Replies: 7
    • Forum: UK Plumbers Forums
  6. J

    Remove pressure valve

    Hi guys , I need to board over this pipework, will I be able to cut the loop and pressure valve out and cap it off at either end. The boiler has the pressure built in and this just mirrors the boiler. I gather it's serving no purpose as the filling loop is on the boiler ? Am I right in...
  7. I

    Trainee gas engineer trying to understand lockup pressure?

    Recently a gas engineer I was working with talked about testing lockup pressure and we were working on an lpg system. I assumed he was talking about operating pressure which should be a set amount plus/minus 2 which I know is 21 +/- 2 on natural gas which helps to prove the appliances is being...
  8. G

    Cistern fill valve - very low pressure

    Hello, does anyone know of a side fill valve that works in very low pressure situations? I installed two separate new side fill valves on my concealed cistern today, a Fluidmaster and a Dudley, both didn't seal properly. From reading reviews and forums it looks like it's due to the very low...
  9. G

    Pressure drop not enough to fire dhw combi

    Currently have 14Mx15mm run from combi to tap dhw. If I replaced the last 6M section with 22mm pipe would this help? Taps closer to boiler have no problems firing the boiler.
  10. P

    Gas regulator pressure affect bills?

    We’ve just had our gas regulator changed. Engineer told us our pressure was 10x what it should be. House is 20yo. Would this affect our bills?
  11. A

    Worcester Bosch Greenstar 30 CDi - Pressure loss

    Hi all, Recently moved into a new house and noticed the Greenstar boiler has low pressure on the dial. Quick Google suggests using a key, valves, or fill loop to increase the pressure. Only problem being is I don't have either of those things. Any help would be appreciated. Cheers.
  12. P

    NIBE ASHP Alarm 'low pressure warning

    Nibe ASHP alarm code 005 low pressure warning, anyone know the cause?
  13. P

    Navien 240E Pressure Valve Discharge

    Hey all, Not a plumber - know just enough to be dangerous.. We just changed our water filters out in the house, and ever since our combo Navien 240e is discharging small amounts of water all day out the boiler side pressure valve. Boiler is off with summer (still using hot water side), but...
  14. R

    Megaflow pressure high. Leaking from overflow pipe when water heating

    Hi folks. I've noticed recently that water is dripping from my Megaflow overflow pipe outside coinciding with the time the heating turns on to heat the water. Whilst the water is dripping, the pressure on the Megaflow is reading around 8 bar. Dripping from overflow stops and the pressure...
  15. J

    Water pressure booster help

    Can anyone recommend a good and quiet water pressure booster? Our house is on a hill and the city water comes up the hill from the street. Our current pressure at the house is around 27 and would like to increase is it substantially. Thank you
  16. W

    Do NRV's reduce flow on gravity and/or need minimum pressure to work?

    Fitted a mixer tap and the mains forces it's way back up gravity hot. But the hot pressure is already very poor due to it being a flat with a combination cylinder on the same floor level as the tap. Carefully chose one that looked fairly modern (as customer wanted) but had good flow on low...
  17. P

    HMO Disaster not enough pressure to 6 bathrooms

    Took on a HMO a couple of years ago.....8 rooms 3 stories with a shared kitchen and 5 bathrooms. Got a builder in who said it would be possible to put ensuites in every room and he started the work. 6 rooms with ensuites are virtually complete and all throughout he has been saying we can only...
  18. V

    No pressure when hot water tap cold

    Hi all Wonder if anyone can help Recently my hot water taps throughout the whole house lose pressure and doesn’t run if the water has gone cold. Once the boiler is on and heated up I have pressure and hot water again. This doesn’t affect my cold water tap Any ideas what could be causing this...
    • Viscount999
    • Thread
    • cold hot water pressure water
    • Replies: 1
    • Forum: Bathroom Advice
  19. B

    Very hot water with low pressure

    Hi we've just had a bathroom fitted with a mixer tap to the sink and mixer tap with a bath handheld shower fitting to the bath and there is almost no pressure at all. Previously we had single taps and the pressure was fine and is good downstairs. It is all gravity fed. We have a shower pump...
  20. B

    Insufficient water pressure for Trition 30i - Instant water heater

    Hello, I've had one of these plumbed and wired (3KW) in to my mothers house in order to add hot water to a sink with cold tap only (ex council 60') only to be told that the available water (to the Triton 30i instant hot water heater) is coming via the main water tank not mains pressure as...
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