With a 1" bulkhead is it beneficial to the flow to increase the size of the piping after the bulkhead? I know increasing standpipe size will increase "head pressure" increasing flow but after the flow goes through the bulkhead is it worth increasing size again?
A 1" full siphon can pass a lot of flow. I cannot imagine a situation where there would be much benefit to increasing it. Oversizing it can also make it more difficult to expel air and get the full siphon started.
A 1" full siphon can pass a lot of flow. I cannot imagine a situation where there would be much benefit to increasing it. Oversizing it can also make it more difficult to expel air and get the full siphon started.
Pipe size change after the bulkhead would be largely inconsequential. The real determining factors are bulkhead size and distance between bulkhead and surface of water. Check this chart out.
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