Okay, so I'm running a DIY ebb n flow system which uses a 40 gallon rubbermaid trash can as a reservoir. I've got a 250 gph pump with 1/2 i.d. tubing going to my controller bucket. The system works as intended, but when the timer shuts off my "fill" pump, the water still keeps running, effectively turning my system into a recirculating system. This is not what I want obviously. My fill line travels to a vertical height from the bottom of the res to a crest of 39'', where it drops steeply to almost ground level and travels behind my tent. Anybody have any ideas how I can stop the siphon action here? It's going to cause premature wear on my drain pump, and as I said, I don't want a recirculating system. Any help is appreciated. +rep to whoever can provide an effective solution.

Thanks.

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..do you mean the water comes back through the pump when it shuts off??<---if so, would a check valve work?? I know they have 'Anti-Siphon' check valves..........

Hope this helps......

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"I'd love to see things from your point of view.....I just cant get my head that far up my ass"--stolen

Nope, the water keeps running the way it is supposed to, it just keeps flowing even when the pump turns off.

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Well, I figured out a solution to the problem. The siphon was caused by the fact that I had some "down hill" action in my line. This downward flow was responsible for the flow of water continuing after the pump shut off. Therefore, I figured that an introduction of air at the highest point would break the siphon when the pump was off; and I was right. I just drilled a hole in the line and inserted an air check valve. It allows air in, but keeps water from leaking out. PB061830-Edit.jpg

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"Every generation needs a new revolution." - Thomas Jefferson
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okay........now it makes sense what was going on----I just couldn't picture it.
I am glad you got it figured out JohnnyPotSeed1969 !!!

Great Growing to you!!

growinman

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"I'd love to see things from your point of view.....I just cant get my head that far up my ass"--stolen

Good idea, seeing as you cant give yourself a rep+, i'll do it for you

haha.......I had done the same thing, fitzy

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"I'd love to see things from your point of view.....I just cant get my head that far up my ass"--stolen

lol Thanks guys! I did a little research on the subject of siphoning. This method works well, and I haven't had any problems with it. Hopefully, this will help someone else in a similar situation.

__________________
"Every generation needs a new revolution." - Thomas Jefferson
Check out my new grow! http://www.rollitup.org/grow-journal...ing-again.html