Some have found success using a bed of spray foam lay it down into the soupy bed of mortar moderately press it in place then check with a level.
Tile redi mortar bed.
Only rapid set thinset or any type of modified thinset or redi poxy should be used to lay tile on the pan.
Redi poxy is a chemical resistant epoxy adhesive used to set tile on tile ready brand shower pans and benches.
Allow the mortar bed to dry in accordance with the instructions of the mortar bed manufacturer.
Materials have worked well with tile redi shower bases.
Allow the mortar bed to dry in accordance with the instructions of the mortar bed manufacturer.
And quickrete mortar mix 1102 7.
Adjust the height of the drain as necessary to accommodate the flooring covering.
Adjust the height of the drain as necessary to accommodate the floor covering.
You are now ready to tile to the shower enclosure.
Use a generous amount of versabond tile mortar in about a 1 bed temporarily framed with a 2x4.
Redi poxy is included with the purchase of all tile ready shower pans and benches and is also available for sale separately if you want extra.