accman
Member
I have a liberty 404 residential pump installed under my basement bar sink, by the builder, of a 2 year old home.
It is not vented to the roof, they installed an air admittance valve. I also have no idea how I'd get it vented at this point up 3 floors.
When running the sink I have a strong sewer smell from under the sink and from testing it seems to be radiating from the pvc pipes fitted into the pump itself, so the inlet and the vent holes. As in where they actually connect.
I've put a baggie on the air admittance valve to test for smell escaping, it's not failing so isn't the culprit.
There is a p-trap between the sink itself and the pump.
QUESTION: Can I seal where the pipes are connected into the pump, the inlet and vent? I think they are letting smell escape. Is there a best practice sealant that works but can be broken easily if repairs are needed and the pipes removed?
Lastly do these under sink sump pumps radiate smell typically, are they really air tight? There isn't a barrier between it and the sewer line so any backup smell into the sump could theoretically escape if not 100% sealed.
It is not vented to the roof, they installed an air admittance valve. I also have no idea how I'd get it vented at this point up 3 floors.
When running the sink I have a strong sewer smell from under the sink and from testing it seems to be radiating from the pvc pipes fitted into the pump itself, so the inlet and the vent holes. As in where they actually connect.
I've put a baggie on the air admittance valve to test for smell escaping, it's not failing so isn't the culprit.
There is a p-trap between the sink itself and the pump.
QUESTION: Can I seal where the pipes are connected into the pump, the inlet and vent? I think they are letting smell escape. Is there a best practice sealant that works but can be broken easily if repairs are needed and the pipes removed?
Lastly do these under sink sump pumps radiate smell typically, are they really air tight? There isn't a barrier between it and the sewer line so any backup smell into the sump could theoretically escape if not 100% sealed.
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