albertm1960
Well-known member
- Joined
- Jun 12, 2016
- Posts
- 74
My Montana has a water hookup to clean black water tank. To fully clean a man on You Tube would close lever and fill tank to fully clean. But It clearly says by the water hookup to always leave drain open, as it does on his camper in the video (RV Geek Video). But when he did this a lot more did come out, plus I hope maybe it will fix my indicator light cause they always shows full. Any ideas if safe to fill? of course I would have to be guessing due to bad lights. thanks