Black Flush Anti-siphon Valve
We’ve chased black tank odors on and off for quite a few years, for the most part they’ve been resolved BUT once in a while we get a slight odor in the fridge/pantry corner of our VL320. Recently I s...
Forum Discussion
MNRon wrote:
BB_TX - thanks for your analysis and thoughts. We don’t get this issue often, nor is it strong. But it’s my current theory that seems to fit. Just dumped tanks yesterday so it will be a while before I get the chance to do the sniff test around the anti siphon, but plan on doing that over the next few weeks.
Assuming the sniff test confirms my hypothesis,do you have any recommendations for a solution? Is an internal anti siphon valve like this standard across the industry on black flush lines?
Many, including myself, have removed the anti siphon valve, bought parts and connected the two pipe ends together, and use an eternal vacuum breaker. That was done primarily due to the frequent leaking problems that occurred. But would also stop any potential odor issue also.
https://www.lowes.com/pd/Arrowhead-Brass-Female-Vacuum-Breaker/3695370?cm_mmc=shp-_-c-_-prd-_-plb-_-ggl-_-LIA_PLB_142_Pipe-Fittings-_-3695370-_-local-_-0-_-0&gbraid=0AAAAAD2B2W8mm5LJgL2u_fe0ms8C5WQqR&gclid=Cj0KCQjwxYOiBhC9ARIsANiEIfaqO9UDrCfdDH2bSFIEtXV28reW_lKnNXRQ44WXI2mQqfEmBd6ZYQ8aApRtEALw_wcB&gclsrc=aw.ds
