and this way you wont be degrading the structural integrity of the flooring...
Vents are in the floor anyway. I doubt it would hurt structually.
The wall is a good idea too but it would involve a 90 or 45 bend and going straight down was easier
1. My tank is drilled on the bottom. Over flow is rated at 600 but I modified it a bit. Not sure what it will handle.
2. Tank drains into the 75 gal
sump and the fuge sits in the sump. I have a maxijet 1200 that sits in the sump and pumps into the fuge. Then the fuge drains into the sump.
3. I am using a GenX PCX40 or Mak4 pump. 1190 gph
but not at my head height. I have 10 ft ceilings in the basement and my return is almost 5ft off the floor. I lifted the sump and pump off the floor 3ft to help with head. I figure I am running 600-800 gph
4. 2 small holes in the floor and 1 hole in the carpet.
5. sump drains to pump. 1" PVC
up to the 3/4" return pipe. Drain is 1" from the tank and I switch it to 1.5" in the basement.