2012 rzr rear hard tanks filling on there own?

[barry1me]

Guys I got a question for you. I will drain my rear tanks till no more water comes out of drain, then a few hours later my rear tanks will still show 0% in rear area but hit drain on tige touch and they will drain for 5. Minutes or so. Front soft bag doesn't seem to have this issue. Is this normal for rear tanks to fill up when the pumps aren't on?

[chpthril]

This has been an issue since the in-floor tank ballast was rolled out in 09, and has continued to date on the boats without the Pro or Surf ballast option. The problem is that the fill hose is too short and makes an almost direct run form the pump to the tank. This allows the little bit of water pressure created across the intake mushroom to flow to the tank.

The easy and typical solution is to reroute the fill hose a little so it loops up higher then the tank before descending back down to it. If you are going to mod the system and add surf sacs, It would address then.