Quote Originally Posted by Raylsv View Post
Also, i read online that you can turn the ballast pumps on reverse to drain and with the bags off, it should empty all water out of the ballast system?
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Yes, it should, but if your trailer was tilted there could be remaining water in the bags or if the pumps lost prime when draining b/c it started to suck some air - you could still have water in there. I little more complex if you have ballast bag vents or check-valves and/or if your bags look like "raisins" when they are done draining.

I had a 2007 Supra for years with the 325 motor. Each winter I would remove all three bags to get all the water out. Sometimes leaving them sit in year on a sunny day to dry out before I stored them back in the boat for the winter to prevent mold. I would also leave them unhooked and then reattach them in the spring.

Same thing if you have any miner's moss sitting under the middle bag. I would remove that, clean it, let it dry, before putting the boat away.

I would also get a garden hose in the bilge to clean up any mess with some Dawn soap, tilt the trailer back when done washing to drain any water, get the remaining water out with towels or sponges. Then let it dry out before storing. Clean bilge at the start of the next season.