I tested the small Grundfos condensate pump yesterday that I have ran hose across my loft for.
It's a long run of hose (around 5m upwards from pump with a good gravity drop thereafter to come back down and catch my kitchen sink waste pipe- around 10m from the head- just within acceptable limits according to instructions). I have the hose simply terminating into a plastic hose fitting, going straight into 1.5" plastic waste pipe.
All seems generally fine except after the pump stops pumping, air obviously works back into the condensate hose and you can see water draining up and down (as though a partial syphon effect before things settle (the hose tubing emptying/draining). I think I'm going to hear some water noise from the set-up at my kitchen sink as well but this isn't presently a worry.
Can this aftermath of the pump running (the draining effect) be avoided with a water trap (purely for the condensate water) before the condensate goes into the 1.5" waste pipe? Is that maybe the answer or good practice anyway?
Thanks
It's a long run of hose (around 5m upwards from pump with a good gravity drop thereafter to come back down and catch my kitchen sink waste pipe- around 10m from the head- just within acceptable limits according to instructions). I have the hose simply terminating into a plastic hose fitting, going straight into 1.5" plastic waste pipe.
All seems generally fine except after the pump stops pumping, air obviously works back into the condensate hose and you can see water draining up and down (as though a partial syphon effect before things settle (the hose tubing emptying/draining). I think I'm going to hear some water noise from the set-up at my kitchen sink as well but this isn't presently a worry.
Can this aftermath of the pump running (the draining effect) be avoided with a water trap (purely for the condensate water) before the condensate goes into the 1.5" waste pipe? Is that maybe the answer or good practice anyway?
Thanks