Advice on dropping water levels

[jxlex]

Hi bros,Just to check if anyone could advice. My tank appears to very having some issues which i cant resolve.it has been running fine for close to 1.5 mths but yesterday i suddenly notice that my top tank's water level is going down while my sumps water level seems to remain constant.it has an internal overflow so theoratically that should not happen (sump - main tank - overflow back to sump) , anyone has any idea why? Water is still flowing down system still running so im quite confused... What could be the possible cause?Thanks much in advance :)send via tapa

[Gouldian]

Alex, if you dun mind I can pop by take a look.

[jxlex]

bro for you anytime man! let me know when you free la, i will stock up tons of beer!

[jxlex]

Any seniors here have any suggestions?

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[[V]tEc]

did u change anything recently? display tank level should remain constant as the water level is controlled by the overflow system.

[jxlex]

Thanks bro... Found the cause... My return pump not powerful enuf and instead of overflowing from the top, it is getting sucked out from my mid level exit...

Changed my pump today and all is well again...

Tks for reply

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