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  1. N

    Older home with no grounding system and pool pump

    Installing a small above ground pool with a 1/2HP 120v pool pump. The house is older and has no grounding system that I can tell. Outlets are two prong. I know I need a gfci outlet to plug pump into but will this be safe and work as intended with no grounding system and only a hot and neutral...
  2. R

    Grundfos Magna1 twin pump control

    Hi to all, I have got dual pump set Grandfos Magna1 installed. Those pumps can be constantly running when paired wirelessly. However, I would like to be able switching them on and off separately, for example 3 hours pump1 is running then pump2 for another 3 hours. To achieve that I assume...
  3. Jurassicsparky

    Remote control of water pump

    Hi, I'm designing a wireless switching system for a cattle water trough. I'm looking for a float switch which would send a wireless signal to a receiver 300m away next to the pump and bring the pump on when required. There is line of sight between the units. At the moment the pump is switched...
  4. G

    UK Is my UK bought pool pump configuration safe? Should I change it?

    Hi, I hope that someone here might be able to put my mind at rest. I have an engineering mind and a reasonable understanding of electical work, but I'm not confident on this area and want to ensure the safety of my family. I purchased a bestway splasher pool a few years ago (holds around...
  5. W

    Manual transfer panel for generator to operate sewage pump.

    I have a whole house 110v sewage pump. Manufacturer says it needs 5 times the operating current for start up. That's 7000 watts. I plan on getting a 8500 watt inverter generator and manual transfer panel...
  6. B

    1950s underfloor heating brought into reuse with air source heat pump

    My mother moved into her three bed home in 1960 and it had underfloor heating in the living room. I remember we used it when I was growing up in the 70s but it hasn't been used for probably 30 years. Electric storage heaters were installed to take advantage of the old off-peak electric tariff...
  7. W

    Anyone know how to strip a Hozelock Aquaforce Submersible Pump?

    Hi All, We bought a Hozelock pump about 8 years ago. It's still working but a dredger came along and cut the wire about 1 foot from the pump. All the waterproof connectors we tried hasn't worked and it's now time to find someone who could help us strip it down and rewire the whole thing...
  8. leehawa

    On and off timer to control a pump

    I am looking to switch on a Grunfos pump on a megaflow hot water tank with a wireless Rf switch I am looking for a timer which when it receives a signal just comes on for 30 seconds to a minute and then shuts off I am not looking for a 7 day programable timer just one that will come on when...
  9. P

    Wire size for 15kW heat pump electric backup element

    In a few days our local HVAC company will replace our propane furnace with a Mitsubishi heat pump (PUZ-HA42NKA1) and ducted air handler ((PVA-A42AA7) with a 15kW backup electric unit (EH15-MPAS-LB). Submittals and installation instructions can be found on mylinkdrive.com. I'm doing the...
  10. R

    How to connect service to pool pump

    2 wires from motor to hi/lo switch. Where to connect power?
  11. Therey4u3

    My main pump is not turning in despite hearing the timer go off.

    Im sure it’s the wiring so what can I do to fix it myself the cheapest way possible.
  12. CarolinaG

    Heat Pump Heating issue with relay sticking

    I had a electrician look and apparently the relay is stuck so the pump keeps running even when not calling for hot water. We already replaced the Honeywell timer and that made no difference prior to calling electrician so its definitely a stuck relay. He said he couldnt get a replacement relay...
  13. timhoward

    Email from customer about shower pump

    This could be interesting. Any thoughts/predictions: I have a pump operated shower – in the past year the pump has been replaced 3 times as it stopped working – but the plumber is at a loss to the problem and said it must be something to do with the electrics? This makes sense, because if I go...
  14. B

    Wiring for Red Lion SPRK200 Pump

    Do the wires connect to the posts (circled in red) that have an 11/32" nut on them or do they connect to the voltage terminals (circled in yellow).
  15. L

    Electric boiler pump running continuously

    Hello I have a Heatrae Sadia Electromax 9kW electric boiler that does hot water and central heating. Recently it broke and someone from Baxi came to fix it (side note, if anyone knows anyone other than Baxi who will work on this boiler then please let me know, they seem really pricey). They...
  16. O

    New condensate pump driving me mad

    So Dad's Old condensate pump went kaput (screeching like a banshee, float valve sticking and wouldn't shut off due to said sticky float valve but still pumping away), service company come out, swap condensate pump (Plumbcenter 667888), however at one point they lose power to programmer and...
  17. Weezy

    Wire Pump to Diverter Valve ‘Brown’ or use a relay?

    Iv wired in lots of regular Y & S plan heating systems with the regular one pump. However this job i’m going to tomorrow (not seen it yet) has 4 Heating Zones and 1 Hot water Zone, the plumber said i need to ensure when one zone runs it doesn’t back feed and cause another zones pump to run, he...
  18. M

    Blocking diode for radiator pump?

    Hi I have a central heating system installed but the controller cannot differentiate between hot water demand and central heating demand. Currently when hot water demand is on and CH is off the CH (radiator) pump has to be run. The issue is that the boiler only has one input for heat demand so...
  19. Y

    Pump tripped RCD - capacitor fell out when inspecting

    Hi, Not quite a central heating system but the same kind of pump used I believe. It is used to increase the pressure of the water system when the tap is turned on. Today it started tripping the RCD. It is located on the roof below the exterior water tank. I removed the plastic cover that...
  20. A

    RCD protection for new pool heat pump

    Hi there all I have a quick question. My garden supply CU has a 100A AC RCD as main switch - off that is my greenhouse supply circuit. Then a 63A AC RCD which protects 7 circuits, one of which is a pool heater. I am replacing the old heater and the new one requires residual DC protection...

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