simy696 Posted June 4, 2015 Share Posted June 4, 2015 dont no if others use a check valve between sump and tank on return. i doo as i found when doing maintance it can flow back into the sump and over flow so fitted a brass dual check valve which i had in the van but needed it for somthing else and swapped it for a black plastic check valve but its as noisy as a old man snoring and ideas tys. Link to comment Share on other sites More sharing options...
mjoconr Posted June 4, 2015 Share Posted June 4, 2015 As I understand it stainless steel is ok so maybe a stainless check would be better.http://www.google.com.au/search?q=stainless+steel+check+valve Link to comment Share on other sites More sharing options...
jcsongei Posted June 4, 2015 Share Posted June 4, 2015 If you mean it's siphoning after you switch off the pump that pumps water up, make a small hole in the pipe just above the tank water surface to break the siphon. Link to comment Share on other sites More sharing options...
mjoconr Posted June 4, 2015 Share Posted June 4, 2015 Hey Simon, need a photo of your tanks water return. I did not take enough notice on how it was plumbed and mounted. Link to comment Share on other sites More sharing options...
simy696 Posted June 7, 2015 Author Share Posted June 7, 2015 all good did my water change saturday and noise gone bizarre see if it comes back i guess. Link to comment Share on other sites More sharing options...
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