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mains

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  1. T

    Running a Combi with out mains water

    Hi In my static caravan I have a Morco GB24 LPG combi boiler on the central heating side its had glycol or some other antifreeze in the system and this is ok to be left over the winter how ever I drain down the domestic water side even through the pipes a lagged I don't think its worth taking a...
    • tonybbb
    • Thread
    • combi mains running water
    • Replies: 2
    • Forum: Bathroom Advice
  2. F

    Blue powdery/gritty deposit in Mains Cold Pipe?

    Hi, A plumber is replacing my bath for me and has highlighted the soft bright Blue Powdery/Gritty deposit that is congesting the Mains Cold 12mm copper pipe. Its lumpy and irregular throughout the pipe. I've seen Scale build-up before, and it was white and very hard. This stuff is easily moved...
  3. D

    Drain Cock on Mains

    As per the title can you fit a Drain Cock on Mains Water?? i have always fitted a "T" fitting after the stopcock and put a Type A drain cock in so once isolated the whole system can be drained but been told today this is wrong anyone care to add their thoughts??
  4. U

    Turning off mains water.

    Hello I need to change the flow valve in my toilet, and have turned off mains water supply outside my property and turned on all the cold taps but the tank was still filling after 20 minutes. Should I have turned on hot taps as well.
    • Unregistered
    • Thread
    • mains water
    • Replies: 2
    • Forum: Bathroom Advice
  5. R

    LVariable water pressure from mains, PRV on shower feed not performing as expected

    Hi, looking for some advice on what to do about my variable water pressure. I have recently had a new boiler fitted, it's a combi boiler fitted by British gas, the old boiler was a hot water tank and gravity feed system. Once the new system was fitted I noticed that the hot water flow was...
  6. M

    Big house, big job: mains off booster pump or gravity fed?

    Okay so you may have seen my previous post regards to this but I'll just enlighten again. Now I've never installed anything this big and just got my commercial ticket so bare with me. If I sound a bit amateur rest assured I will not start job till I'm 100% confident. Got a 8 bedroom house...
  7. G

    double check valve requirements for incoming mains.

    Hi all, current job to replace old lead incoming mains for 25mm poly pipe, from the meter in front garden to kitchen at back of house, 3 bed semi with a combi boiler, !question! do I need to include a double check valve on the incoming mains water valve arrangement. many thanks
  8. S

    Mains cold taps hammering, opening hot outlets stops it

    Now then fellas, just signed up as im abit stuck with a job at a tenants this afternoon, for a month or so since they had their new boiler fitted (Vallient ecotec +824) all the cold taps in the property hammer when theyre opened , which in turn causes the hot taps to kettle up and begin to pass...
  9. E

    Mains connection 15mm reducing flow?

    Hi All, To cut a long story short I've a Ideal istor boiler I've posted abotu previously. Its an unvented cylinder all in one boiler. Bad reputation but mine has been good over the last 2.5 years. I had a new mains fitted a year back-ish and hoped for better flow rates. This didn't happen...
  10. L

    Upgrading mains supply - will it make any difference?

    Hi All, I'm looking into ways of increasing the supply flow rate, so that my shower doesn't reduce to a trickle when other outlets are used at the same time. The mains supply is in 15mm (what I can see of it anyway). My question is - will getting the provider to upgrade this to a bigger pipe...
  11. A

    Replacing lead mains to MDPE

    I have read through all posts about lead mains replacement to MDPE. To get my head round it can any plumbers give a guide to how it's done. I've seen parts of it done once as an apprentice. In my case there is the drive way. So you'd dig up the drive way from the boundary stop valve to the...
  12. E

    Pressure Reducing Valve limiting mains water pressure why?

    Hello, I was hoping someone could answer a query that has puzzled me for a while and nobody has been able to help all that much. I have a new mains water supply coming into the basement which has replaced the old lead version. This new connection is instantly greeted by a pressure reducing...
    • ecswtrav
    • Thread
    • mains pressure valve water
    • Replies: 26
    • Forum: Bathroom Advice
  13. D

    Which mains water filter?

    Hello everybody. I've been asked to fit a mains water filter, God knows why when we live in one the best quality water areas in the country but ours is not to reason why. can anyone suggest a mains water filter that can be fitted under the kitchen sink without too much bother. I would ideally...
  14. F

    Water saving tank alongside mains

    I a house with low pressure water a Monsoon Pumb can be used to increase water flow at taps on demand is there a similar method I can setup for a large rainwater tank with the extra complication of a mains water connection if the water butt is empty! I can place the tank in a shed for protection...
    • Flagstaffview
    • Thread
    • mains tank water
    • Replies: 0
    • Forum: Bathroom Advice
  15. W

    Cistern connection to mains.

    Hello Experience: DIY plumbing. i have installed a couple of cisterns and used 15mm compression to the plastic cistern connection, never had a leak. The ends of the pipes appears to be 'chamfered' if that's the correct term, for an olive, not flat like a tap connection, hence the logic...
  16. jaydebruyne

    Weird Water Pressure on Mains

    I went to a job today of a lady complaining about the hot and cold water pressure.. She said every now and then both hot and cold stops completely then comes back on. Naturally I think it's a gravity system and either a ballvalve issue or an air lock of some sort, or maybe a pump. I get there...
  17. L

    mains water inlet pipe reduced from 22mm to 15mm before stopcock/water meter

    hi, please excuse any ignorance on my part that this question may throw up. my lead metal mains pipe enters the house and looks a respectable 3/4" outside diameter but within 6 inches it is reduced to 15mm copper to pass though the stopcock. this then passes through the water meter using 15mm...
    • layman1
    • Thread
    • mains meter pipe water
    • Replies: 1
    • Forum: Bathroom Advice
  18. M

    Overflow gushing water when mains turned on!

    Hi there. Any help appreciated with this one. I've had no hot water coming from the kitchen mixer tap, so I adjusted the cylinder mechanism in the tap so that hot water flowed OK. However, when I turned the mains water back on, the overflow pipe outside began to gush water. Looking at the...
    • Mattsky
    • Thread
    • mains overflow water
    • Replies: 8
    • Forum: Bathroom Advice
  19. spanner

    15mm water mains feed too small

    Hi guys. Never done this before. Have an unvented hot water cylinder to go up in a loft conversion and think I'll have to dig from the mains stopcock as the existing is old lead (7 1/2LB) 15mm and needs to be 22mm and feed back into the downstairs kitchen and up into the loft, connecting to...
  20. F

    Minimum mains water flow rate

    Hi all. Bumped into a guy who worked for a water supply company the other day and he mentioned that the supply company has a duty to be giving at least 10 litres per minute to a property. Is this true and if so is it true for all of the UK? regards, chris
    • Fitzthefool
    • Thread
    • flow mains water
    • Replies: 8
    • Forum: Bathroom Advice
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