Grinder pump venting

03-01-2008, 12:10 PM	#1
big daddy-o Member   Join Date: Jan 2008 Posts: 40	Grinder pump venting can anyone provide me with a picture of how to properly tie vent line , to grinder pump? new basement bath, need to install pump, not sure how to tie 2" vent line into pump line so as to not have waste pushed into vent. also do I need a back flow valve? thanks

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03-01-2008, 01:59 PM	#2
Ron The Plumber Journeyman Plumber     Join Date: Jun 2006 Location: Eugene, Oregon Posts: 1,994	Grinder pump venting It should have it's own vent separate coming off the pit and vent to outside on it's own. Two line out the pit, one is vent other is discharge. __________________ Fix it right the first time, so you won't have to fix it a 2nd time. To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

03-01-2008, 03:30 PM	#3
chris75 Electrician   Join Date: Aug 2007 Location: Connecticut, Litchfield Posts: 2,015	Grinder pump venting Quote: Originally Posted by big daddy-o can anyone provide me with a picture of how to properly tie vent line , to grinder pump? new basement bath, need to install pump, not sure how to tie 2" vent line into pump line so as to not have waste pushed into vent. also do I need a back flow valve? thanks Did you read the directions that came with the pump setup?

03-01-2008, 05:07 PM	#4
Fitter Newbie   Join Date: Jan 2008 Posts: 15	Grinder pump venting Your pumped line should have a check and shut off valve installed above tank. So when you need to change out your pump you can shut off your valve and your check will hold back all of the fun stuff in your discharge line. Run your vent to any of your vents upstairs, not to your drain discharge.

03-01-2008, 06:35 PM	#5
big daddy-o Member   Join Date: Jan 2008 Posts: 40	Grinder pump venting I don't have the pump yet. so no direction reading. the house was built5 yrs. ago and set up for this . vent is stubbed through the floor, I need to bring it down to pump, just not sure of correct way.

03-01-2008, 07:23 PM	#6
Fitter Newbie   Join Date: Jan 2008 Posts: 15	Grinder pump venting Pipe it something like thi(2 inch)

03-02-2008, 08:45 PM	#7
big daddy-o Member   Join Date: Jan 2008 Posts: 40	Grinder pump venting so how far into crock does vent pipe go? it 's just venting the crock , correct?

03-02-2008, 09:54 PM	#8
Fitter Newbie   Join Date: Jan 2008 Posts: 15	Grinder pump venting Yep, just off the top.