Rich One
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- Jul 17, 2012
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Happens all the time when the volume of rainwater going thru the main drainage discharge pipe into the sewage system, exceeds its capacity, creates a pulsating plunger effect and the water backs up on the line and into the units.... !! Only solution is to Plug the lines..!!
Your drainage is trying to discharge into a street main that is overflooded...!!
Your drainage is trying to discharge into a street main that is overflooded...!!