Heppy, the vent being buried may be a bit of overkill, but as long as the "larger" pipe is vented to atmosphere, you could certainly use a pipe that goes under the water to allow the vent supply tube to let water rise and fall.
For strainers, I keep it simple...for the inlet of the siphon, I use a 10' long TEE (5' on each half) with caps on the ends. I drill about 150 1/2"-1" holes in the TEE on each half...this reduces overall suction at any given point, and prevents fish, trash from clogging anything. For the vent..very course rock may work, but will probably silt in over time....a TEE for the water level tube similar to the siphon inlet may be better (no pressures for anything to clog)
Note...with no covers on the inlets in DC70's design, turtles or large fish could easily plug the pipes, plus a stick could get sucked in and get trapped in an elbow...once leaf litter enters the pipe, it will plug up like concrete and become a real bear to try clearing
Last edited by Rainman; 08/25/18 02:36 PM.
