New Gateway 2015 3650BH - went to back flush the main black tank first time filled 3/4 full, went to drain and heard two loud snaps. Turned out the PVC pipe going into the tank snapped and the 1 1/4 PVC pipe coming out to the main wast gate snapped and the entire tank sank through the bottom.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.