Rainman,
I like the way you use the capped 5’ of perforated pipe on each side of the TEE as your trash guard on your siphon pipe. I also think that would be ideal on the larger vent supply pipe. Is it correct to assume using the modifications you have suggested will work in any climate buried below the frost line? If this is correct I will post another drawing that others may refer to in the future.
Thanks!
Heppy
It will absolutely work, as the piping will never freeze. I'd also suggest no larger than 3/16" holes drilled into the upper 4" of vent pipe itself with larger (1/2"-1") holes lower so there will be far less venturi (whirlpool) action that will lower the vent supply line and suck air, making the siphon hammer stopping and starting. (you'll be amazed at how much destructive force there is when the siphon stops and starts). Also, make the vent pipe rise about a foot higher than shown in DC70's design, and raise the vent supply pipe as well (also to prevent supply pipe level drop/air entering)
