If your tank will be sitting for more than two weeks, it’s best to completely drain it until it’s time to use it again. If you’re a full-time RVer, make sure to add this to your yearly RV ...

These are general tips. 1. With the boat out of the water and level on its trailer or a cradle, open the ballast-tank water intake/drain valves in the bilge and pump out any water remaining in each ...