I bought all the needed supplies and am ready to siphon ... using 4" pipe. I have 4" thinwall, elbows, two tees, etc. Except ... shutoff valves for 4" pipe. Local stores did not have them.
I found two ball type 4" pvc shutoff valves at a local irrigation supply but they wanted over $100 each. Yikes. I presume I need one on each end otherwise when I pour the water in the top filler opening it would just run out on the drain side and run into the pond on the water side.
I'm trying to think of a cheaper alternative?
And, I bought a rubber cap secured by a hose clamp to put on the top tee after I fill. I'm hoping it won't get sucked in?
