M mcraige Jan 1, 2005 #1 [I cracked the U-tube in my overflow. The new one I bought is longer than the old one -- it sticks down closer to the bottom of the overflow box. How much clearance should there be between the U-tube and bottom of the overflow?]
[I cracked the U-tube in my overflow. The new one I bought is longer than the old one -- it sticks down closer to the bottom of the overflow box. How much clearance should there be between the U-tube and bottom of the overflow?]
N NuclearReefs Jan 1, 2005 #2 [the last ones I had ran about 3/4 of a inch,, which was plenty of room.]