The kitchen sink stains extremely slow. I removed the AAV and it drains normally so I bought a new AAV, but the new one does the same as the old one. I'm not sure where to go from here. This is in a mobile home and every sink (3 of them) and the washing machine has this type of vent- and both bathtub. Any help would be much appreciated.
Kitchen sink drain issue.
- Thread starter john1234
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