Studer Valve failing ???
While camping this past weekend, I had a small issue... my drains in the bathroom all worked perfectly, that is until I closed the grey valves the night before leaving to allow the grey water to accumulate for dumping..
When the valves were closed, during a shower, the water was draining fine, then it backed up for a few seconds.... I heard a "BURP" and it all went done and was fine again...
Once I got out of the shower I saw water spots ALL OVER the sink and mirror.. It burped UP from the bathroom sink...
Could the Studer valve cause this?? Again, all was fine for a week with the grey valves OPEN... It happened twice, both was when the valves were just closed
2020 3991RD with-
17.5 Goodyear 114's , Titan Disc brakes, MorRyde 8K IS, Onan 6.5..