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  1. F

    insulating elevated loft cold water tanks

    I have three cold water tanks (2*cw + ch header) on a platform roughly 1M above the loft floor, I have not encountered this arrangement before and wondering how best to insulate it. Normally in previous houses with the tank direct on the ceiling joists I have left the ceiling un-insulated under...
  2. E

    Shower off combi running hot and cold

    I have a combi Halstead HE 30 in my loft, the past few days the gravity fed power shower runs between hot and cold The sink hot water taps are ok as far as I can tell, I have mixer taps. I look at the boiler code as the sink taps run, it stays on H, but when I use the shower, it switches...
  3. M

    Mass of gunge in cold water storage cistern.

    Hi all. Hope you are enjoying the sunshine and hope no one is working in lofts at mo. Anyone seen this gunk before in a cold water storage cistern?
  4. Wamus_202

    Which Gate Valve will turn off cold water to the taps?

    I think we have an indirect hot water cylinder, we are trying to replace a sink. However there are no isolation valves on the in-between the taps and the piping. Is there a way to turn off the cold water flow to the taps, without turning off the main water supply incoming to house ? I have...
  5. A

    Can u bung cold tank 2 create a vacuum on single pipe heating system

    Need to adjust some pipework for new radiator but both the branches for old radiator came off the same pipe. Will this create a vacuum for me to move the tees further apart then rejoin up?
  6. 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
  7. Bettyboo

    Help! Bristan shower cartridge , cant turn off cold water from shower

    Can anyone help please ? I am in the middle of trying to clean/ service a Bristan shower cartridge for this shower Recessed concealed shower 1901 Concealed Concentric Shower Valve | Bristan - https://www.bristan.com/products/mixer-showers?code=n2%20cshcvo%20c It had started to drip after...
  8. N

    Low cold water pressure only in bathroom

    Hi, I’m new to the forum and would really appreciate some advice on this problem I have with my bathroom cold water pressure. We recently moved to this one bedroom flat and our hot water comes from a communal boiler in the basement. In the kitchen the water pressure is good for both hot and...
    • Newbee001
    • Thread
    • bathroom cold pressure water
    • Replies: 1
    • Forum: UK Plumbers Forums
  9. F

    Shower replace cartridge cold hot does not work

    Moen Posi Temp1222A cartridge replacement. I replaced my old cartridge with a new one. I one with the handle goes from cold to hot. Now it goes from warm to hot. I reversed the cartridge and get warm to cold. I don’r what else to do so it can get cold to hot again. I tried at least 2 brand new...
  10. P

    how do I fix the cold water faucet that is barely running?

    My upstairs cold water faucet just barely streams out.. The cold and the hot in the shower are fine but not the cold water of the sink. Is there anything I can do myself without calling for a costly pllumber?
  11. omendata

    Blocked Cold Water Tank Pipes - Doing my head in for over a year

    Ok I have been dealing with this problem for over a year and finally have to ask for some help as backflushing every 2 weeks or so is getting very tiresome. I live in a 60's flat (3 flats per side of the block so 6 flats in all) with two overhead water tanks in a tankhouse on the flat roof for...
  12. T

    Megaflo cold feed hammering.

    Afternoon all, I’ve recently started getting a loud vibration coming from the cold feed. Only when I’ve got the hot tap on. Any ideas what it could be? I’ve managed to stop the vibration by turning the blue valve slightly. Thanks in advance.
  13. Bazza1687

    Shower runs cold when hot taps used

    Hello, I have just installed a new shower which works well, however if you open a hot tap anywhere else in the house the shower runs cold, however if I open a cold taps the temperature does not change. I believe my shower is only a mixer not thermostatic did not do my research when buying the...
  14. S

    Mega flo issue: no water flow from hot tap, cold tap ok

    Hi all, I recently re pressured my mega flo, isolated water then drained water into tundish etc. Turned on hot water tap and no water coming out. I turned on cold water two and the water pressure and flow is ok. Does anyone know why there is no water coming out of the hot tap? Thanks
  15. P

    Heatpump Hot on Gas Side But Cold On Wet Side?

    Mitsubishi Ecodan 2011 8.5kw Hy Guys, I have just installed a second hand ecodan, all seemed to be going well until i noticed that the flow temp doesn't increase much, infact 2 degrees in 40 mins, then the pump shut off with a over temperature warning on the gas side. I have it piped up to a...
  16. A

    Cold water flow problem has stumped 3 plumbers...can you help?!

    Afternoon all - We have a problem with very little/no cold water flow on the ground and first floor of our (fairly new build, 7 years old) 3 story town house. All flow is fine on the top floor and the hot water is unaffected and runs throughout the house. It's an unvented, balanced system...
    • Alexwales
    • Thread
    • cold flow plumbers water
    • Replies: 63
    • Forum: UK Plumbers Forums
  17. J

    Why are my radiators cold at the bottom?

    Our newly bought house doesnt have a filter on the combi and most of the radiators (microbore) dont heat up at the bottom which im putting down to sludge and other gunk i intend to fit a filter (not sure which 1 yet) and run some clearer through it (fernox f3 has been recommended) i am also...
  18. W

    Mixer shower - mains cold - gravity hot

    Hi, I've seen a few posts about not using mains cold with gravity fed hot. Ours is only about 0.1 bar for the hot. The reasons given vary from possible backflow into hot cylinder to hard to get a good mix. In that case how does the kitchen mixer tap work - that mixes gravity hot and...
  19. W

    Why does my shower keerunning hot and cold

    Why does my shower keep running hot and cold
  20. J

    Cold water storage tank setup

    Hi all, My mates recently bought a new old house and has had extensive work done including new bathrooms etc. We've got a few questions about the hot and cold water distribution. The house is supplied by cold water at around 3 bar, so decent enough pressure. The way it's set up at the moment...
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