Water level in overflow higher all of a sudden

[Anonymous]

The water level in my overflow rose about 1 inch overnight. I have a Durso standpipe and the water line was at the middle of the tee where it's supposed to be, now it's higher. Is this a matter of the drain pipe getting clogged or do I need to tweak the air hole a bit?

 

[t gallo]

where does the overflow drain to, sump im guessing. if so , did the water level in the sump rise also, do you use ant kind of floss pad filter in the sump and if you do it mite be getting clogged causing a backup, pressure like causing the system to back up and rise a littile.

 

[Anonymous]

It drains to a sump and the sump water level is consistent. Maybe I need to change the filter bag, it's probably pretty nasty by now.

 

[Jime]

In the evening after lights go out I notice that the water level in my overflow rises 2 or 3 inches. I think maybe the power drain during the day effects the performance of my pumps.

 

[Dazureus]

Yeah, if there's a filter bag on the sump inlet, then it might be clogged creating a little back pressure. My water level rises a lot when I feed particulate matter to the tank. Go figure.