I'm renovating my bathroom and have a question regarding the sub floor. Currently there is vinyl on top and ceramic tile in a bed of concrete underneath and the original sub floor is 1x6 laid diagonally over the floor joists. Any suggestions on how to remove the old tile flooring? I will also be replacing the tub and will be adding new sub floor to the whole bathroom with the intention of putting vinyl in the main section. Any recommendations on sub floor material/thickness?