I recently had a company finish my basement with a bathroom (stand up shower, sink and toilet). The installed a pump in the concrete floor. When I asked where the pump vented to he showed me that they had run the pipe into our storage area and installed a Studor AAV. I understand that these valves allow air in when the pump kicks on but will not allow sewage air to escape. He said this is up to code and will work fine. Does anyone know if this set up is ok or should there be a vent that runs outside? Thanks.
Ejector pump vent in basement bathroom
- Thread starter dbbl21
- Start date
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Like you say Studor vents do not let air escape. If the tank was installed correctly and the lid is air tight the tank will build a pressure when filling not allowing it to fill. The vent must go to the outside. If the tank is filling then there is a leak in the lid. This you will discover the first time the pump fails and the tank overfills. You will have sewer leaking out of the top of the tank.
Was this inspected?
John
Was this inspected?
John
I hadnt thought about the pressure buildup when the tank is filling, john is Absolutelly correct in his statement and I would doubt now having thought about it that this would pass code ( here in canada it would not ) anywhere.
Thanks for the replies. It has not been inspected. Excuse my ignorance on the pumps but wouldn't pressure be equalized when the pump ejects into the main sewer line and air is sucked in through the AAC valve? My biggest concern is smell but wouldn't that leave into the sewer line? FYI we will not be doing any #2 in this toilet. Strictly #1 and a little toilet paper every now and then. Not trying to give too much information but I don't know if this makes a difference. Thanks.
The problem isn't when the pump comes on. The problem is were will the air in the tank go when the incoming water is displacing it? It will create a pressure in the tank not allowing water to enter. Keep in mind this is a sealed tank if there is no vent.
John
John
