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plumbing the kitchen sink drain
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sri
Posted 1/4/2019 15:09 (#7220100 - in reply to #7219545)
Subject: RE:More Info


nw pa
AlphaOutlaw - 1/4/2019 10:13

I'm sure it does not meet code. Had a plumber tell me he wanted to re-do it but he also wanted to replumb the whole house.
The septic system was updated 2 years ago, sized properly for the house so that shouldn't be a problem.
The gurgling is not from back flow, its the gurgling of the trap in the sink every time the pumps run (there are 2). From what I can see there is no vent on the sink drain, the septic drains are vented. It has been set up this way forever but we put in a new pump this summer that has a shorter float range and more power than the old pump so it runs more often and when it kicks in it really gurgles the trap compared to the old wore out pump.
We are careful not to put too much grease and food down the kitchen sink as to not clog up the drain tile. I was just wondering if there was any advantage to not having this gray water going septic vs. tile.

also, as stated, the new system/tank was sized for the house, 3 bedroom, without a garbage disposal. would it cause trouble to add a disposal now? when we put in the system it was going to be like $1500 more for a bigger tank if we wanted garbage disposal.

thanks for replies so far. probably going to re reroute drain to septic
.


DO not put a garbage disposal on a septic system.. just asking for trouble. There was a reason for the bigger tank. Put one of those positive vents in the sink line. cheap and may work. is there a check valve on the pump?? The pump kicking on shouldn't make the sink gurgle. May be possible if sink drain is under water ,it could pull a syphon on it but not likely. sounds to me like no check valve and when pump turns off. water runs back down the pump line and backs into sink drain.





Edited by sri 1/4/2019 15:11
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