Quote Originally Posted by allan View Post
As far as the eventual spill (I've been thinking about this since the 10 gallon saltwater rinse I gave my living room (fortunately I have a tiled first floor)) this is what I was considering for my in wall system.

The other side of my potential wall is a large pantry. I was thinking about placing a shallow plastic basin beneath the build. My washer/dryer is upstairs and the washer sits in a shallow metal basin to capture spilled water. Basically a floor made of plastic that extends about a foot further than your setup's footprint with a two inch lip.

Would something like that work for your fish room? A simple sensor is needed that when it becomes wet it will shut off your pumps and sound an alarm... or perhaps the latter and leave the former for you. I'm thinking if you aren't home though...
That's a good thought. I hadn't thought of that. What I was thinking of is sealing all the walls where the bottom 2x4 meets the ground around the fish room except for one small 1ft area or so where the wall divides the fish room with the garage. That way, if water spills, it will collect a little, depending on the slope of the floor, but excess will drain into the garage where the floor is sloped to drain outside. Hopefully it will never happen as a major spill would be catastrophic for the tank if I'm not home, and I don't know what that saltwater would do to the landscape around the house.