Removing gray water tank insulation

Have not done a tank, but have done other things. Basically just slice into the foam with a knife, and then dig your fingers in a peel away. You probably will want to lay down disposable plastic, that way when your done, you can just wrap it up and throw everything away. The foam will be very susceptible to static electricity, so pick a humid day, otherwise it will cling every where and just be a pain. Shop vac will be your friend.

BTW: TankDepot.com is a good place to get tanks if you have not found another source. That is where I bought my replacement grey tank.