ahhh, so u think it might be an issue with maintaing a consistant sump level? I've plumbed a top off as well, I'm having issures with the air adjustment gettin clogged all the time as well as the venturi getting clogged constantly. Plus I'm not a huge fan of the way the effluent line is plumbed. i think that its a stupid desing to have the water spill over into the sump creating a large amount of microbubbles
However, I'm not sure that the Rs-80 would be much better. I don't know why the 150 is rated for much high tank volume when the RS-80 has a bigger reaction and contact chambers
I'd like to get this issue resloved asap becuase I've been offered an RS-80 for 175 brand new
Kurt
