Hopefully not an emergency...

[Richmond]

I noticed my salinity was a little off this morning, wile looking in the rear chamber of my AIO IM40, I noticed the water level fluctuating up and down about an inch. Unfortunately I think this is causing unnecessary top off.

Why on earth would the water level fluctuate? Could my pump need a cleaning? I just vinegar soaked and cleaned it about 2 or 3 months ago. My rear chambers are as follows: Far left filter sock, next IM Ghost skimmer, middle return pump and ATO sensor, next is my heater and ATO feed line, last chamber has an algae scrubber inside a media basket with carbon and GFO media bags on top.

Open to any advice on how to quickly troubleshoot and/or remedy.

 

[Snookin]

Was salinity high or low? A clogged filter sock on a small AIO can restrict flow and the rear chamber will lower. This will cause your ATO to be activated more frequently and the salinity to lower.

 

[Richmond]

Was salinity high or low? A clogged filter sock on a small AIO can restrict flow and the rear chamber will lower. This will cause your ATO to be activated more frequently and the salinity to lower.

It was lower.

 

[vetteguy53081]

Something is clogged or blocked. I would start at pump intake or even clean the pump.