Quote Originally Posted by Fman View Post
I am starting my last ballast project on my '08 Supra. I am adding a seperate vented line for each bag. This will eliminate the air pockets forming in the bags when filling. Especially the front sac. It will also aid in draining them, eliminating the "vaccuum" effect when water is being extracted from the bag. Another plus is , when the bags are full it will allow water to exit and eliminate excess pressure that could cause damage to the bags.

Its a pretty easy project, assuming your bags have an extra capped off port in them. I am adding a quick disconnect in each bags extra port (currently plugged off right now) that will tie into the drain line near the exit hole of the boat. There will also be a one way check valve I install to eliminate water from coming back into the bags while draining them.

I will post some pics when I am finished. Total cost of this project with all 3 bags is about $125.
I never have this problem, probably because of my procedure for filling/storing the bags. After each outing, I pull all three bags out of the boat, drain all the water out of them, then fold them for storage on a shelf in the garage (and in the process, get almost all the air out of them). This allows me to put a fan in each rear storage locker which completely dries the carpet and wipe the ski locker dry. Then when we take the boat out, I put the bags back in and hook them up at the boat ramp staging area, right before I put in. I have never gotten any air in them doing it this way nor is there any mildew in the boat. Of course, I store the boat in the garage so that helps a lot.