I have my lift station discharge into septic line, close to where upstairs bath drains to septic line. The lift station is vented to a roof vent that the upstairs bath is vented to also. When the lift station pump operates it causes large gurgle noise in upstairs shower. Does the lift station pump discharge line need to be vented also? Can the lift station vent and the pump discharge line be vented to the same vent? Will this stop the gurgling?If I only vent the lift station to a separate vent would this stop the gurgling and also prevent the need for the pump discharge to have a vent also?Thanks, Don

Hello Don, Yes, and Absolutely. Sewer Ejector requires dedicated vent that terminates above the roof line. Do not combine Sewer Ejector vent with existing plumbing vent system in your house. The way you have it connected now, the gurgling sound is a sound of your traps being sucked dry by your Sewer Ejector

Hope that explains

Milo

I posted this on the other post you attached to. Same as Milo says.

"lift station is vented to a roof vent that the upstairs bath is vented to also." Code in most places will require a dedicated vent for the ejector pump. "Can the lift station vent and the pump discharge line be vented to the same vent?" No. It is no longer Dedicated.
Realize that an ejector pump is a closed loop. The vent need to be separate since it works on Positive pressure-as the tank fills, and Negative as the tank empties. If it is tied into another vent, you risk the possibility of blowing sewer gas into the house or sucking a trap dry.

Hello Don, Yes, and Absolutely. Sewer Ejector requires dedicated vent that terminates above the roof line. Do not combine Sewer Ejector vent with existing plumbing vent system in your house. The way you have it connected now, the gurgling sound is a sound of your traps being sucked dry by your Sewer Ejector

Hope that explains

Milo
Thank you very much. I will redirect ejector vent. If it doesn't work I will let you know. So hope you don't hear from me about this again.