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Recent contents Top users
  1. C

    Grundfos Alpha Pump replacement

    Hello, my Mothers heating failed in the recent UK cold snap. I found the pump was stuck. I have a question about pump orientation. The existing pump flows downwards. The manual for the proposed replacement recommends that it should pump upwards. This would involve rearranging the flow &...
  2. D

    Setting up Grandfos Pump

    I had a new Grandfos UPS3 pump fitted today, and am trying to set it up. I want it on 2nd setting, but having problems. The green light is on setting 1 and there is a yellow light on setting 2. If I press the arrow the green light stays on 1 and I then have yellow lights on settings 2 and 3. If...
  3. Drak911

    Alpha 2 15-60-130 pump

    Hi we have a Alpha 2 15-60-130 central heating pump fitted. We need a bit more heat from 12 rads. I’m confused about the settings as the Auto Adapt was pulling 14w which is not enough. I have now set the right side led to position 4 and it pulls 25w. Does anyone know what the pump should run at...
  4. K

    Smart Pump Setting with gravity fed system

    Central Heating Pump - G Pump Force HE-RS25/6PWM-130 Hi, I would be grateful if someone could explain whether our CH system can cope with the AUTO (adaptive mode) setting on this the new pump or which mode it is best set at (recently had our old 3-speed pump replaced with the above smart...
  5. magnumpl

    Macerator pump for a toilet & sink using existing shower pipe

    Hello. I am planning to build a small half bath in my garage, next to a washing machine, using old showers plumbing. There was a stand-alone shower in the garage which has been removed. Unfortunately the pipes are only 1.5" on that side of the house since there's no bathroom and the house is...
    • magnumpl
    • Thread
    • pipe pump shower sink toilet
    • Replies: 0
    • Forum: Boilers
  6. G

    Booster Pump Needs Reset Daily

    Hi, I am currently using a Grundfos Booster Pump. This pump is fed by 2pcs of 1,000 liters water tank. Normally the pump would stop working only when there is no water in the water tank. But, recently for the past week, in the middle of the night, the pump would stop working even though the...
  7. T

    h/w cylinder compatible with future heat pump system?

    Hi We urgently need to get our h/w cylinder replaced because it's leaking. Our current system is oil boiler feeding underfloor downstairs, radiators upstairs and an unvented hot water cylinder for hot water. We are thinking of moving to a heat pump at some point but aren't ready to do this. My...
  8. W

    Replacement Collector Circuit Pump

    Hi, I’m looking to find a replacement Collector circuit pump for a ground source heat pump. This is the pump on the brine circuit. The pump I have is no longer supported by the manufacture. It’s a Wilo TOP-S25/7.5 Any recommendations would be very welcome.
  9. L

    Why is the pump running 24x7

    My son has just had a new boiler fitted and hes noticed that the pump runs 24x7 even when both the heating and hot water are set to off. He’s also found that when the hot water is set to off on the programe timer, the boiler is still heating up water. I wonder if this is because the engineer...
  10. Jagobezzer

    HETAS - Without a pressure pump

    Hi all, Just a quick question. I have a log burner and a gas boiler on a dual fuel system (Central heating and Hot Water) either can do both. The hot water tank I believe is a closed system but is on the same level as the bath. Therefore as you might guess the water pressure at the bath even on...
  11. Z

    Vaillant System Boiler With Additional Pump

    Hi, i've got a job with a Vaillant Ecotec 630 system boiler, and i don't know the full history but the house has definitely been extended significantly since the boiler was installed. There's now 21 radiators/towel rails. It's getting to temperature, but even after balancing, it's not heating...
    • Zippymark
    • Thread
    • boiler pump system vaillant
    • Replies: 2
    • Forum: Boilers
  12. G

    New UPS3 pump too powerful ?

    Hi, I have just had my central heating system "upgraded" for a four bed-roomed detached house. The heating company recommended going from the open vented system to sealed / pressurized system, new pump ( UPS3 Grundfos ) all new plastic pipework ( extending ) the 22mm feed and return pipes so no...
  13. A

    Salamander pump not working unless shower head is taken down

    Hey, here goes and I hope it works.. never used one of these before! I have a Sagittarius Ergo mixer shower min bar of pressure required 1 bar. Connect to this is a 1.5 bar Ora Salamander pump for a positive head, this was connected by a plumber of course and we’ve had it all rigged up...
  14. K

    Does combi boiler need an external pump or not?

    My conventional boiler needs to be replaced. One engineer suggested combi with an external pump because water pressure in my flat is low, the other said there's no need for a pump. He even said that if the pump would have a detrimental effect on the boiler. Who is right?
    • Krzysztof
    • Thread
    • boiler combi combi boiler pump
    • Replies: 5
    • Forum: Boilers
  15. K

    fix the connector leak to water pump - emersion heater

    hi all, i need help to fix the leak from a pipe connected to the water pump via flexi pipe and it is feed from the immersion heater. I have emptied the water tank in the loft and also closed the main stopcock. still the leak is on - hoping it will eventually stop. I have not idea how the...
  16. av2597

    Water Circulator Pump Bust After Only 1 Year!

    Hi all, we have a water circulation pump to bring hot water from our woodburning stove and send it to a thermal accumulator tank. We've just started our second season and it's broken. I thought these were meant to last 10 - 15 years? We don't have a domestic water supply - we use water from our...
  17. A

    Need equivalent pump to Branston varispeed 50

    Wanted a new shower pump equivalant to a Branston Varispeed 50 After 12 years my shower pump has stopped working and it looks as though this type of pump is not made now. These are the details on the pump Bristan Varispeed 50, High performance Water Pump, Duel Cycle Continuous, and this number...
  18. P

    Unvented Cylinder Single coil heat pump vs twin coil solar

    Hi, I'm looking to purchase a 300L unvented indirect cylinder to work with a standard heat only boiler. I may have solar panels in the future, but likely the PV kind rather than the thermal kind, and won't be having heat pump in the future. So the cylinder would be connected to the boiler at...
    • p--man
    • Thread
    • cylinder heat pump unvented unvented cylinder
    • Replies: 9
    • Forum: Boilers
  19. Zoe100

    Help Please, Salamander Accubust Water Pump

    Help pls, I’ve got a Salamander Accubust water main pump it has an in & out & third port for an accumulator can I blank off the accumulator port & use it as a mains water pump without an accumulator? TIA
  20. D

    UFH fed by heat pump in 120 year old red brick

    Hi, I have a 3 storey house built in 1904. We put UFH in the house about 20 years ago. Works well with newish gas boiler. Just curious... I know heat pumps are meant for tightly insulated modern house ... but.. Question: Given that my UFH is always at a low temperature - Could I feed UFH with...
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