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Air Source Heat Pumps (ASHPs)
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 Marvinator80
(@marvinator80)
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Topic starter 21/05/2023 6:42 pm  

Can anyone hazard a guess as to why water is coming out of this wee pipe outside my house? I remember the engineers referred to it as the “run off” or something like that. The cylinder is whooshing too, like water coming in or out of it.  

it did it last week for about 20 minutes too. 

I just can’t seem to find anything in my documents or online as to what this is.

IMG 2178


   
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 Derek M
(@derek-m)
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Posts: 4425
21/05/2023 6:47 pm  

Posted by: @marvinator80
↑

Can anyone hazard a guess as to why water is coming out of this wee pipe outside my house? I remember the engineers referred to it as the “run off” or something like that. The cylinder is whooshing too, like water coming in or out of it.  

it did it last week for about 20 minutes too. 

I just can’t seem to find anything in my documents or online as to what this is.

IMG 2178

Is the water coming out of the pipe hot? Where does the pipe connect inside your home? Is the water in the tank getting too hot?

 



   
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 Marvinator80
(@marvinator80)
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Topic starter 21/05/2023 6:52 pm  

@derek-m seems to be warm water. Weird. 

The hot water is on a top up cycle and stuck at 37 degrees while it does this. 

if I turn on a hot water tap the whooshing stops but it’s not hot coming out of the tap.



   
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 Marvinator80
(@marvinator80)
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Topic starter 21/05/2023 6:57 pm  

It seems to connect to a pipe which runs to near to the top of the cyclinder.

and connected to this. The noise would appear to be cold water coming in through this see through thing.

IMG 2179


   
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 Marvinator80
(@marvinator80)
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Joined: 3 years ago
Posts: 201
Topic starter 21/05/2023 6:57 pm  

Water temp now up to 39 but still cold out of tap while this whooshing noise and outside flow continues.



   
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 Derek M
(@derek-m)
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Posts: 4425
21/05/2023 6:58 pm  

Posted by: @marvinator80
↑

@derek-m seems to be warm water. Weird. 

The hot water is on a top up cycle and stuck at 37 degrees while it does this. 

if I turn on a hot water tap the whooshing stops but it’s not hot coming out of the tap.

Can you provide photo's of where this overflow pipe is connected inside your home?

 



   
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 Marvinator80
(@marvinator80)
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Topic starter 21/05/2023 7:01 pm  

@derek-m



   
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 Derek M
(@derek-m)
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Joined: 5 years ago
Posts: 4425
21/05/2023 7:02 pm  

@marvinator80

Is there a pressure relief valve installed within this pipework?



   
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 Marvinator80
(@marvinator80)
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Joined: 3 years ago
Posts: 201
Topic starter 21/05/2023 7:03 pm  

@derek-m it goes straight through the wall seemingly from the cylinder but it’s hard to see the full workings now with the cupboard.

IMG 2181


   
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 Marvinator80
(@marvinator80)
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Posts: 201
Topic starter 21/05/2023 7:04 pm  

@derek-m yes, I’ve turned this before when it started whistling a bit.

IMG 2182


   
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 Derek M
(@derek-m)
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Joined: 5 years ago
Posts: 4425
21/05/2023 7:06 pm  

@marvinator80

You may have to employ a hand mirror.



   
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 Derek M
(@derek-m)
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Joined: 5 years ago
Posts: 4425
21/05/2023 7:09 pm  

@marvinator80

Can you make a sketch of where the pipework connects and identify any equipment fitted to the pipework.



   
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