It's ok man I didn't even iron the sheets I hung behind my tank =) Not sure I even have an iron these days actually lol.
I can relate to the air bubbles/splashing. When I bring my water-change section of the sump back online I have to do it really slow. Huge bubbles fly out and the water level is less than an inch from the top of the sump in that compartment. I've 'gone over' many times
