I removed my old acylic shower pan and plan on replacing it with a fiberglass pan. The installation is on a second floor bathroom. Currently there is leveler on top of some type of barrier, the leveler tapes towards the drain pipe, it appears to be in sound condition.
My question is do I just add leveler to fill in indentions my by previous pan or do I need to replace the leveler and barrier to go with the new pan?