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Old 11-20-2010, 07:57 AM   #1
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Venting a sink drain pump question

I am installing a utility sink in the basement that requires a drain pump, I am considering a Liberty 404 or Hartell LTA-1.

I am discharging into the main waste line (3" PVC), and adding a vent at this discharge point.

Question: The Liberty 404 requires a vent. Can I tie this vent into the new vent point that I am adding where the discharge of the pump enters the waste line or do I need to add a seperate tie point into the vent for the pump? Do I need both of these vents?

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