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Recent contents Top users
  1. 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...
  2. 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...
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. 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...
  8. 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.
  9. 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: Boilers
  10. 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...
  11. 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...
  12. 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...
  13. 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...
  14. S

    New UFH wrong side of pump ?

    Hi Guys Im after any advice or if someone can recommend a good heating engineer in Thanet ?. I had a Wundafloor manifold installed for our groundfloor and new extension (currently 4 zones running) and im having problems with the whole system now and the plumber is ghosting my calls. The...
  15. P

    New mixer tap not activating pump.

    Hi, complete newbie so hope you don't mind me asking for help... I've just had my dripping thermostatic bath/shower mixer tap replaced, which was fab for the first few days. However, it is now taking ages for the hot water pump to kick in when using the bath or shower for the first time. This...
  16. B

    Pump is only 9w on highest setting

    My grundfos alpha 2 15-60 130 pump is set to 3 but not pulling more than 9w so all rads are cold. What could be the problem and how can I solve this. Thanks for any help
  17. J

    water circulation pump too hot

    Hi all, I just found the red pump (attached photos) is very hot, is this all right? Or something wrong? The radiators are very hot, the red pump which is workman 25-60 hot/cold water circulation pump is very hot too. My system is unvented cylinder+heat only boiler. Is this normal that the...
  18. Bogart

    YouTube Video of pipework and pump

    Saw this last night and wondered about a couple of points. 1 You see the state of the pipework at 7m30s and at 7m54s he says he will recommend the customer gets the system flushed. I am thinking that the pipework shown is not like it throughout or surely no amount of flushing will help that...
  19. L

    pressure problem with pump

    You I have a jet pump and bladder tank. the water pressure is fine when I open a tap. then psi lowers and pump comes on when it reaches 30 psi. but it cannot get back to 50 psi. the pump keeps running as long as the tap is turned on. as soon as you shut the tap the pump gets the psi back to 50...
  20. G

    Boiler pump speed wrong?

    I had my boiler pump replaced yesterday as the other one had stopped working. The guy said he had one on the van that would fit and the boiler started working again. Now I'm finding the radiators that are furthest away from the boiler arent getting quite as hot as they were before. The pump he...
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