Gray tanks open or not?

Gray tanks open or not?

Boy, here’s a misperception: Should you leave your RV’s gray tank valves open all the time? Well, nearly every RVer we talk too — especially the big fifth wheelers and motorcoachers¬†— say “yes.” Well, here’s what we think....
But my RV’s tanks are fine….

But my RV’s tanks are fine….

If we had a dime for every time we heard this! It’ the top comment we hear every time when we ask someone if they’d like their RV’s waste tanks cleaned. We get it. You don’t think anything is wrong now, so why do anything? But your RV’s...