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Old 03-01-2008, 12:10 PM   #1
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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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Old 03-01-2008, 01:59 PM   #2
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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.

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Old 03-01-2008, 03:30 PM   #3
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Grinder pump venting


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Originally Posted by big daddy-o View Post
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?
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Old 03-01-2008, 05:07 PM   #4
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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.
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Old 03-01-2008, 06:35 PM   #5
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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.
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Old 03-01-2008, 07:23 PM   #6
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Grinder pump venting


Pipe it something like thi(2 inch) Name:  scan0001.jpg
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Old 03-02-2008, 08:45 PM   #7
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Grinder pump venting


so how far into crock does vent pipe go? it 's just venting the crock , correct?
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Old 03-02-2008, 09:54 PM   #8
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Grinder pump venting


Yep, just off the top.

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