From the bloggers at Love Your RV.
A little while ago I released a blog post explaining the operation of a plumbing part called an Anti-Siphon Trap Vent Device (ASTVD) and how a failure of it could lead to waste tank odors making their way into the RV.
At that time, I indicated plans to install what’s called a HepvO valve as a replacement to the traditional P-Trap.
My friend Doug from DrainMaster.com had highly recommended the HepvO valve as an upgrade. So while RVing our way north this spring I stopped into his place in Hollister, Calif., and picked one up.
To read the full story by Love Your RV, click here.