pump

  1. N

    Circulation Pump Question

    As mentioned in my 'System Drain' thread the house has been extended in 1986. In recent years I felt the circulation was not as good as it should be . I have previously replaced a section of pipe when we had blockage at point where cold feed joins together with clean and drain, refill+...
  2. J

    Shunt pump control - Viessman boiler

    Having Viessman Vitodens 200-w 32kw installed. I’m expecting to then install low loss header and secondary pump for whole house. (Size / flow rate justifies this). I’m looking for 1) confirmation that the secondary pump will be controlled via (something like) their EM-M1 controller...
  3. W

    No Central Heating, Pump faulty???

    Hi all, Central heating has packed up at my parents house, firstly it was only the upstairs Rads that were working and downstairs not now both have stopped working. I think it could be the central heating water pump as it seems a little loud with some 'odd' sounds now and then, I have tried...
  4. F

    Shower pump trigger issue

    ive been to a badly installed salamander shower pump.No independent cold supply and hot teed off 15mm to whb.If you lower the shower head 12 inches the pump will trigger which makes sense however if you have the shower head back in its normal place and operate the bar mixer it will only trigger...
  5. D

    CH pump replacement concerns.

    Hi. My Parker 15-60 130 pump has been running fine for 7 years at its highest speed. It has recently developed a knocking sound when hot and working hard (disappears on speed 2) but this is not fast enough for my 15 radiator bungalow. Bleeding the pump had no effect so I suspect it might be on...
  6. S

    Grundfos ups3 pump, what speed.?

    Hi, recently had a Grundfos ups3 Pump fitted and get a hissing noise out of it and then 2 of the closest radiators start to gargle, I’ve change the speed down to constant 2 as it was on constant 3. Would constant speed 1 be ok as its a bungalow with 8 radiators.? Thank you.
  7. R

    Is my drain meant to have a pool of sewage? (Domestic uphill pump)

    Hi all, I have a submerged pump in my drain (a Hippo 50) pumping uphill on my property to the sewage main. I've been noticing a bit of a sewage smell every so often e.g. after using the shower so lifted up the drain cover today to have a look. It looked like a septic tank in there being full of...
  8. B

    Worcester Bosch Greenstar 24i Pump Speed

    Can anyone tell me if the greenstar 24i circulating pump modulates? i have been looking at param 2.1c which references settings 0 to 4, i know the factory default setting is 4 (constant high pressure) which to me implies that it would not modulate on this setting, does it need to be setting 0 to...
  9. F

    Hot feed from twin pump stalls when cold feed starts in bath mixer tap

    Hello All, Hoping for a bit of advice/info in this one: My Setup Small system in apartment with cold tank above hot tank in the hotpress, so fairly low head pressure. Installed a pump about 15 years ago and worked fine until last week (original pump was an Stuart Turner ST55 replaced after...
  10. M

    Grundfos 25-80 Pump - Magna1 versus UPS2?

    Replacing boiler and will be fitting Grundfos 25-80 Pump (recommended by pump sizing calculator). Any thoughts or advice on Magna1 versus UPS2? From what I can see the Magna1 is a large beast but space not really an issue for me, but is it actually worth it? On paper specs look quite similar...
  11. J

    Adding pump over-run?

    I have a new Firebird Silver Boiler House model oil fired room heat only. I note in the manual all other models in this range have pump over- run connections. But not mine: The circulator pump is wired with the boiler. So when a zone valve opens the boiler and pump both get 240v. Could a...
  12. D

    Stuart Turner Monsoon pump sticking on or off

    We have a Stuart Turner Monsoon 2 bar shower pump which has lately been either refusing to start, or not switching off when we turn off the shower. Tapping the side of the outlet pipe seems to unstick it more often than not, but it's a real nuisance. We have an oil-fired Aga, and the water does...
  13. J

    Pump/pipe sometimes bigger noise?

    Hi all, I have unvented cylinder & heat only boiler installed a few months now. Once the boiler is on, I can hear the sound or light noise comes from the cylinder&pump room, it is normal and fine. But recently, a few times now, I can hear that sound&noise becomes bigger after the boiler on...
  14. J

    What kind of pump can empty a full septic tank in a remote area?

    I thought I could buy an external pump to pull out with a two inch pipe and send it away from the house.
  15. R

    New Hot water pump still running constantly after boiler cuts off

    Scottish Power fitted new pump and claim fault in the tank?? Scottish Power engineer claims fault with sensor in tank however the central heating pump switches off when rads at temp. A Bastian pump was fitted in place of the Grunfos one - I've insisted he returns to fit a Grundfos one as I...
    • Robert Douglas
    • Thread
    • boiler hot water pump running water
    • Replies: 1
    • Forum: Boiler Advice Forum
  16. P

    Replaced CH Pump Primaflow CP5 -> Short Cycling

    Morning and Happy New Year everyone! As is typical over the Christmas period my Central heating circulating pump died on new years eve. It had sounded like a bag of spanners for a while so i wasnt totally surprised. But its timing was impeccable. The pump i replaced was a Primaflow CP5 (GPD...
  17. B

    fitting a shower pump

    I am pricing for a new bathroom the possible problem is the the customers water supply is a borehole which is pump to a tank in the roof then supplies the house from the tank by gravity can i fit a shower pump or power shower on this type of system its the first time I have seen this type of...
  18. J

    Inadequate Circulator Pump?

    My house is a 1970s build fairly well insulted detached 2 storey. Split in 2no zones which are controlled independently with digital thermostats and rarely run at the same time. Downstairs has 9 double rads and 5 single rads. Upstairs has 5 double rads and 1 single rad. Open vent system std...
  19. G

    UFH must valves open before pump runs?

    The (rather sparse) manual with the controller that was supplied with my UFH (Hettaj describes the start sequence as - when demanded by the stat - valves open then pump runs. As the programmability of the stat is very basic, I’d like to replace it with a smart controller the same as I use on...

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