How thick should I make the mortar under the support rails for a 6x3 whirlpool?
Will I still need leveling stringers if using mortar?
Which mortar should I use? I understand concrete and thinset are not acceptable.
My thinking is to sit the tub on (2) 4x4's, pour the mortar bed, then lower the tub.
Looking for recommendations, tips, and tricks to help this go smoothly.