Quote:
Originally Posted by bubbles
I had the siphoning issue through the vent tube on a previous unit. The solution was to splice in a section of vent tubing that was long enough to make a loop that rose higher than the holding tank. Of course the access to the tubing was easy on that unit. Had no more siphoning issues and the vent (overflow) still functioned as it should.
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Agreed FR saved $1.00 per unit using "direct" vent method, hard to keep water aboard however.