This is a drop in style fiberglass tub. The instructions say to lay a
bed of mortar or plaster , then sit the tub in it. It has to have 100%
support on the bottom and no weight on the lip where it sits on the
framing. My question is this; Is there something besides good old
mortar that perhaps is lighter to fill this bill? It seems with the gap
i think I'm gonna have going by the instructions, that i may need two
bags or better of mortar to be deep enough.
THANKS! I have to go exchange the option heater (they handed me the
wrong one) tomorrow, so i'll pick up some. I can always use the extra
to patch walls. (we have a few 100 yo houses we haven't started on yet).
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