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flow

Recent contents Top users
  1. D

    Is it possible to 'repair' a Hep2O (Wavin) UFH flow control?

    After balancing the flows, one of these blighters has started to drip very slowly from under the red cap. It feels loose to turn, so I suspect the seal around the spindle is to blame. It won't be 'worn' as such, as they don't get fiddled with for years, but this tiny adjustment was seemingly...
  2. H

    What happens if you set a flow temperature lower than HW cylinder

    Hi there, I was wondering if you set a boiler flow temperature at lets say 50 degrees and your unvented indirect cylinder is at 55 degrees - is it the case your cylinder will never reach up to temperature, or will it reach the temperature but just take longer? I have an older boiler where I can...
  3. J

    Single pipe systems - can I reverse the flow

    I have a single pipe system retrofitted to a 1930's house. It is powered by a condensing gas boiler. As expected, the radiators get cooler the further they are from the boiler. It occurred to me that if I fitted a "crossover switch" between the punp and the radiators I could send the water...
  4. H

    How to best measure flow and return from boiler?

    Hi there, I have the following system boiler setup with a low loss header and four different circuits. I've set the boiler flow to different levels between 65 to 70 degrees but the surface temperature readings never seem to reach much above 55 degrees into the LLH - I have tried a clip on...
    • HRP123
    • Thread
    • boiler flow return
    • Replies: 19
    • Forum: Boilers
  5. G

    WB Greenstar 8000 Range Rating and Flow Temp

    Hi all, I've had a WB 8000 35kw boiler installed today and was searching through some websites which talked about range rating your boiler and/or turning down the flow temperature to save on cost. I spoke to the engineer that installed it and he advised against rage rating saying that having 17...
  6. A

    Glow-worm ultracom - pcb or flow sensor?

    Good morning. We have a 10 year old Ultracom which now very frequently thinks there's a demand for hot water, even though there isn't, so the boiler kicks into that mode, and sits there heating tap water that isn't going anywhere. Sometimes this happens if a cold tap has been used or the loo...
  7. david montgomery

    Hot water tank in a flat has poor flow rate after refurbishment.

    Good morning everyone. My parent had a new kitchen and bathroom fitted in her flat 2 years ago and has only now told me that the hot water flow to both hot taps is really poor. it wasn't like this before. its a flat with a 1075x450 IND BS combi HW tank. she says that the tank was drained down...
  8. P

    Worcester 37 combi flow adaptor cost

    What would be a fair charge to fit a flow adaptor to a Worcester combi boiler? Thanks
  9. C

    no flow through boiler

    two storey house with vented system and baxi boiler. Have had the BAXI engineers to fix a slight leak on boiler but when they tried to fill the boiler there was no flow . They think that the cold water feed is perhaps blocked with sludge although this enters the 22mm return flow just after the...
    • C Jackson
    • Thread
    • boiler flow
    • Replies: 5
    • Forum: Boilers
  10. G

    How to prioritise flow at tee

    I have a water pipe (unpumped) from a stream in to my shed that houses a water tank. I require a continuous flow of water along pipe A in the photo. At the tee junction water can also be fed in to the tank, pipe B. I want Pipe A to run continuously (it heads straight in to another stream) but...
  11. G

    Different flow temperature for radiators and hot water tank circuits

    Hi Morning, I am looking at a new boiler and hot water cylinder setup for a house I am refurbishing and am getting conflicting advice on my question: Can I use a Combi or System boiler to have a different flow temperature for the hot water tank heater and the radiators. I appreciate the hw...
  12. M

    Hot water tap terrible flow

    Hi all, The hot water tap on our bath only dribbles, even when fully open. Our hot water pressure in the house isn't amazing, but it's not bad - the kitchen sink in the next door room is absolutely fine. I tried to link a video but the forum wouldn't let me, so have attached it instead. Does...
  13. R

    loosing hot water flow when macerator pump goes?

    Hello I have a salon and the plumbing for the hair wash basins is taken from the toilet, so when we are washing hair and the water is a good temperature, when the pump goes the water goes cold it takes a wile to come back. It used to do it a bit and now its much worse. A plumber said it cant be...
    • Russell James
    • Thread
    • flow hot water pump water
    • Replies: 3
    • Forum: Bathroom Advice
  14. daniel218

    Slow tap flow after new tap valve

    Recently had a repair done on a leaky tap they replaced the tap valve on my bathroom 1/4 turn taps, now the hot tap flow is slower What my problem please and what could I do to fix? They is no areiator on my taps
  15. R

    Baxi 228 combi boiler hot water flow rate poor?

    Hi, Just checking I'm not talking rot. Today I visited a house with a Baxi 228 combi boiler. The technical spec for the DHW output is shown in the image. Boiler was installed 27 months ago. Baxi is claiming 13.3 litres @ DT 30. I set the boiler DHW temperature to a high setting. I was...
    • Ric2013
    • Thread
    • baxi boiler combi combi boiler flow hot water water
    • Replies: 6
    • Forum: Boilers
  16. J

    Can I improve flow rate by reducing diameter of a downpipe?

    Hi, I’m installing a down pipe which goes from the house to a waste water treatment tank. The length of the route is 55 meters and the pipe diameter is 125mm (which collects black water from 5 toilets, grey waters are on a separate pipe). For about 35 meters the pipe has a good inclination of...
  17. WizPip

    Fast hot water then noise and normal flow after heating hot water

    Hello, I'm a fairly adept DIYer but I have an issue with my plumbing and not entirely sure what's left to check. I have an unvented indirect system with 1 hot / 1 heating zone, cylinder is a Range Tribune HE 150L pre-plumbed. For quite a while now I've had a problem where after the hot water...
  18. F

    Mixed diameter Flow & Returns

    Hi all. Recently had a new combi installed (Glow-worm Energy 30kw) in a new location (moved from upstairs to down). The flow and returns now leave the boiler in 22mm (for approx 1m), then drop to 15mm to feed the first two upstairs radiators, which are closest to the new location. This then...
  19. A

    No water flow into cistern

    Hi I have a Dudley vantage dual flush pneumatic Niagara flush valve system. The cistern is not refilling after a flush. The system has never been good - refilling very very slowly but now not even doing this. I can turn on /off the cold water tap on the bath which is situated next to the cistern...
    • Alan from Aberdeen
    • Thread
    • cistern flow water
    • Replies: 3
    • Forum: UK Plumbers Forums
  20. Z

    Hansgrohe showerselect curious flow issue

    Hansgrohe showerselect shower (push button on/off + temperature) fed from mains/combi. Flow rate dropped. Removed shower head which is fine (tested on another shower). Good pressure and flow rate from hose without shower head. Restricted flow through hose by placing thumb over end - flow...
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