Questions Filter Sort by: Most Viewed Newest FirstOldest FirstRandomRecently ActiveMost VotesMost Answers Ask Question Featured/Unfeatured Show featured only Resolved/Unresolved Show resolved only Open/Closed Show open questions only 0 votes 1 answer 4k views Auto-vents vs. Air Admittance Valve ( Alternatives to potential leaks?) Laundry-to-landscape systems anti-siphon auto-vent vent Hello installers! I’m looking into using anti-siphon vents for the first time indoors and I... thirstyPDX asked 4 years agolast active 4 years ago Showing 1 result