reeffreak
Reef pro
Yote,I think if you push the air line tubing up the U-tube you would have to find a way to secure it.Maybe silicone will hold it in place.Fortunately for me,my overflow has an attachment to hold the airline tubing in place so the flow doesn't push the tube back out.For you,I believe the best way is to drill a small hole at the top of the U-tube,insert tubing and silicone it.
On the float valve thing,why not a auto-top unit to keep the water level/evaporation from getting low in the sump instead of a valve to shut off the pump.I think the price is about the same.
On the float valve thing,why not a auto-top unit to keep the water level/evaporation from getting low in the sump instead of a valve to shut off the pump.I think the price is about the same.