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Bell Siphon Test.
OK it kinda worked. But needs work.The grow bed is 17' long x 2'-6" wide x 1' deep. I used my garden hose to fill it up and flush the gravel. I used a 1 1/2 inch pvc pipe for the drain. I think I need to go smaller. The garden hose did not fill it fast enough to start the siphon.I had to pull up on the bell to give it a boost and when I did it drained very fast. Like in one minute or less. How fast should it fill and how slow should it drain. hmm not sure yet.
Comment
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Comment by Harold Sukhbir on September 2, 2012 at 8:57am
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It will allow the siphon to start with lower flow rate and drain slower
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Hi Dave,
you can attach a 1/2 " or 3/4" reducer to the overflow pipe at a height that is below the bed.
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Comment by Dave Mannina on May 1, 2012 at 9:17am
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Hmm. So draining fast is good? And you want to fill slow?
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Comment by Jim Hall on May 1, 2012 at 12:25am
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One system I help build had a 16' x 4' cinderbed with an air pump and took 29 minutes to fill and only 3 minutes to drain.
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