Question about my durso's?

[jmaness084]

i just installed 2 dursos on my standard 180gal tank. one is doing fine but for some reason the water level in one of the overflows keeps moving up and down. when it gets to the strainer(intake) on the durso it moves back up. when i installed them they were both fine for about 3hrs but now its doing that. any suggestions?

 

[jmaness084]

nobody has any advice?

 

[sjm817]

Usually when it does that, you need to adjust the amount of air allowed in. Open the hole in the top a bit more.

 

[LunarDDS]

sounds about right to me sjm817

 

[jmaness084]

thanks for the advice.