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  1. I

    Advice needed. Converting gravity fed cold supply to mains fed to supply an electric shower?

    I want to put in an electric shower in my downstairs cloakroom which currently has a gravity fed cold supply from the tank in the loft. The shower I am looking to install needs a mains fed cold supply which I could do by disconnecting this pipework from the gravity tank and connecting the cold...
  2. M

    Banging water pipes when my neighbour open cold or hot water taps

    I just rented a top floor flat which is a roof conversion built only 10 years ago and after moving in, i found out that inside the largest storage eaves, there is a communal water tank which serves only the 6 other flats below except mine . I already has few issues with the tank noise which has...
  3. W

    If multiple mixer taps may be getting cold going back up the hot

    Can you just put a non return valve on the hot under the combi where it comes out? Rather than put one on the hot pipe to each and every tap? Or is that no-no for some reason? Ta
  4. C

    Leaking Cold water storage tank and overflow

    Hi there Hoping for some advice on a plumbing issue. Bit of background - currently I am not using my gas central heating system. The system is 20+ years old and kept breaking down and various plumbers visited and fixed problems but advised system flushes or a range of options - essentially the...
  5. C

    Changing taps - can't work out the cold flow set up

    Hi, I am a DIY plumber and was going to change the mixer tap in the utility room (the old kitchen from the 70's) and I am puzzled by the cold flow. On the image starting from the pipes in on the bottom of the cabinet. On the left is hot, on the right is cold. The cold services the tap and the...
  6. E

    Bristan separate hot/cold Kitchen Pillar Tap Washers

    hi as our separate hot tap is dripping contacted Bristan to ask what washer to get as heard that depending on date bought, washers either rubber or fibre. Bristan said that they do not supply individual washers but only complete valve assemblies. sure that I have seen Bristan washers on the...
  7. J

    Shower runs cold when kitchen sink hot is used

    Came across a tricky job last Friday.gravity fed vented hot water cylinder that is pumped via twin impeller pump.also cold from tank is pumped with same pump.pump is upstairs.feed for bar mixer shower pipes go up into loft and drop down into the shower area.cylinder up stairs.would shower run...
  8. N

    How to install hot and cold water to sink valve

    Hi folks, Newbie here. I'm having trouble connecting the washing machine hot and cold water valve to the below sink. As you can see in the picture, the valve is already connected to the sink above it. I would like to confirm whether I need to unbolt the below hex cap so that I can connect the...
  9. B

    Both showers have little to no cold water

    Both showers/baths have either very hot or very cold or no cold water at all. Problem fixed itself for a couple months then came back yesterday. The pressure drops for a few seconds with waves of water from shower head. Hot water heater only 9 months old. All other faucets work normally...
  10. R

    how to prevent cold water flowing back into the hot water pipe

    I have a single lever pull out kitchen faucet installed. The tap takes a hot and cold water connection, the cold is from the mains so is at a higher pressure. The hot is from the system boiler so is at a lower pressure. It seems to me that when I open the tap, the cold water is forcing its way...
  11. H

    10mm pipework for cold water..why not?

    why is 10mm pipe not used for taps/toilet outlets? Why do I need the same diam pipe at the wash basin or toilet as I do at the bath or shower? I can't think of a reason why not so before I implement this, have I missed something that's not so obvious to a layman?
  12. B

    scalding hot new Danfoss c-2 TRV cold lockshield and new radiator only hot at top .

    I have recently replaced all fourteen Stelrad radiators eight singles four doubles and two chrome towel radiators on small bore 10 mm piping in my four bedroom detached house.The Grundfoss pump is ten years old and sounds good .no bearing rumble.The Ideal classic ff 350 boiler is twenty years...
  13. L

    Water hammer caused possibly by cold feed crossing into hot feed

    Have a water hammer that can't get to the bottom of and have searched everywhere. Hammer occurs when hot tap 1st runs the noise comes from the hot water tank cupboard thought it was the expansion vessel so had it replace went away for a short time but returned. Had the vessel checked again and...
  14. H

    Priority cold water flow to combi

    I understand that its normal for output flow from a combi to reduce when the inlet cold water flow is reduced (when other outlets are opened) but is there a method/process/configuration that can be adopted to minimise the effect in the the drop in flow and in doing so, provide a priority flow...
  15. J

    Sweating cold water pipe

    I'm having an issue where I am getting a buildup of condensation on the cold water pipe in my home that is located in my kitchen. I have insulated the pipe with plenty of foam but it's still doing it, It's then running down the pipe and down my stop tap and onto my wooden floor. The cold water...
  16. T

    Hot/cold taps not mixing

    Hi I have mixer taps on my kitchen/bathroom taps and when I put the hot on a then try to cool it with hot then the hit goes off, what could be causing this?
  17. P

    Cold tap in upstairs bathroom flow problem

    Hi all, I'm having an issue with the cold tap in my upstairs bathroom. There is barely a trickle of water coming out, while the hot water tap is running fine. I'm not having any problems with any other cold taps in my house. A Google search suggests that there may be an airlock in the system...
  18. G

    One cold rad

    I have a gravity feed heating system. F&E tank in the loft - boiler is located outside in the shed. the problem i am having is that when i turn on the heating on 1 radiator upstairs in the master bedroom wont get hot - I've bled the rad and its running clear water. if i isolate the heating...
  19. T

    Mains cold water knocking out gravity hot water in bath shower mixer

    Hi all. My customer has a bath shower mixer that gets cold from the mains and hot from a vented cylinder and the cold knocks out the hot. I'm thinking about putting in a thermostatic bath shower mixer but would appreciate any other ideas! Cheers all/
  20. D

    Hot water only lasts 2 - 3 minutes before slowly dropping to cold.

    Hi all, Hot water only lasts 2 - 3 minutes, if I turn it off for a minute hot water returns for a couple more minutes. It seems to last longer on a lower pressure. We had a plumber change the heat exchanger which didn’t make a difference. And it’s not the thermal mixer in the shower as we had...
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