I am working on a whirlpool tube and am trying to get ideas for incorporating an access panel in the front of the tub which has to have 1 step and is covered completely in tile. Problem-left side is the shower wall, right side is bed room closet, back is exterior wall. Should I maybe look to put it in the Closet? Keep in mind I will have an on-demand hot water heater in this closet. I need an access panel to get at the pump and drain. Should i have 2?