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Thread: Ashp

  1. #1
    Member Rank = Nisai turk's Avatar
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    Ashp

    Can I run water from pond skimmer
    To my heater .air source
    Then back to filter as I’ve no room
    To run from filter to pond



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  2. #2
    Senior Member Rank = Rokusai Rayman's Avatar
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    Quote Originally Posted by turk View Post
    Can I run water from pond skimmer
    To my heater .air source
    Then back to filter as I’ve no room
    To run from filter to pond



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    As long as you pump the feed from the skimmer then yes. You need a minimum pressure on the ashp for it to work.

    Sent from my SM-G965F using Tapatalk

  3. #3
    I agree. This is perfectly possible if you plumb the bypass correctly in order to create the correct flow and back pressure as shown in the diagram below. Read more about how to correctly bypass equipment such as heat exchangers and heat pumps etc. on this link:
    Bypassing equipment


  4. #4
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    Quote Originally Posted by Manky Sanke View Post
    I agree. This is perfectly possible if you plumb the bypass correctly in order to create the correct flow and back pressure as shown in the diagram below. Read more about how to correctly bypass equipment such as heat exchangers and heat pumps etc. on this link:
    Bypassing equipment

    Do you know of anyone that could
    Fit / set this up


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  5. #5
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    This current set up


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  6. #6
    Anyone who can competently do pond plumbing could do this for you, there's nothing special about it except that I recommend wheel type gate valves rather than slide valves or ball valves because gate valves are easier to set to any desired flow rate. However, you should tell them that you would need to replace the flexi pipe with 1.5 inch BSP pipe in order to get enough flow through the heat pump.

  7. #7
    Member Rank = Nisai turk's Avatar
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    What size pump would u recommend
    One on pic is 550
    Or would a flow rate pump be better
    And thanks for advice
    Some of the koi shops
    Say that many no or different ways
    U end up not knowing what will work


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  8. #8
    You will need a pump that will easily give the flow through the heat pump that is recommended by the manufacturer or the flow switch will not operate and switch it on.

  9. #9
    Moderator Rank = Supreme Champion Feline's Avatar
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    Has your skimmer got a basket etc. in it? It's not ideal to put water that is not clean through your heat pump.

    As Manky says above, plumbing them in is a really trivial job for someone used to doing pond plumbing. You just need to make sure you've ordered enough bends, T's and valves to do it in the space available.

  10. #10
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    Quote Originally Posted by Feline View Post
    Has your skimmer got a basket etc. in it? It's not ideal to put water that is not clean through your heat pump.

    As Manky says above, plumbing them in is a really trivial job for someone used to doing pond plumbing. You just need to make sure you've ordered enough bends, T's and valves to do it in the space available.
    Yes got a made basket holes are quite small it’s quite good at collecting debris
    Just not sure on flow pump
    Or existing one



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  11. #11
    This need not be a problem. You just need to check the recommended flow rate with the manufacturers or suppliers of the heat pump and then check with the manufacturers or suppliers of the pump to see if it's suitable.

  12. #12
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    Was also thinking of a sieve
    Coming from one of the outlets
    The heater then back thru other outlet on pic
    Outlets are half way down pond so weight of water there’s a good flow
    Coming out


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  13. #13
    Member Rank = Nisai turk's Avatar
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    Via a new pump


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  14. #14
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    Would I position heater at ground level pipe to inlet from skimmer
    Pump attached on outlet pipe
    All in 1.5 pressure pipe


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  15. #15
    Senior Member Rank = Rokusai Rayman's Avatar
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    Quote Originally Posted by turk View Post
    Would I position heater at ground level pipe to inlet from skimmer
    Pump attached on outlet pipe
    All in 1.5 pressure pipe


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    I would put the pump on the inlet side to ensure the pressure switch operates correctly.

    Sent from my SM-G965F using Tapatalk

  16. #16
    I would put the pump directly fed from the skimmer and pump into the heat pump.

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  18. #17
    Senior Member Rank = Rokusai Rayman's Avatar
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    Quote Originally Posted by Manky Sanke View Post
    I would put the pump directly fed from the skimmer and pump into the heat pump.
    Which is what I was trying to say above. Ashp

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  19. #18
    Sorry I didn't mean to repeat what you had just said. I must have seen it just before you posted so my reply came just after.

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