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Old 01-03-2012, 02:02 PM   #19
rusbet
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Join Date: Oct 2010
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RE: Back flush vent line

Thanks everyone for your input. It has been very helpful. We'll search out the right vent opening and do the necessary. I'm still not clear on how one actually backflushes and for how long but I'll assume it is just shooting some water into the vent opening with the non-potable water hose.
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