Installation Guide

Page 9 of 10

Build the Support Box structure to appropriate height. If working with a concrete sub-floor,

thoroughly inspect and clean the floor in the tub cut out channel prior to securing the treated

2x4. Remove any materials from the concrete that may cause an uneven surface. Apply

adhesive directly to the concrete floor. Insert the 2x4’s and thoroughly spread the adhesive on

the concrete.

If wood sub-floor is present, screw the 2x4 directly to the sub-floor, or you can use the adhesive to adhere

it in place.

Prior to inserting the small Support Box, it is first necessary to secure a 22 ½” long 2x4 into the

channel of the small Support Box. Place a bead of adhesive around the inside of the Support Box and

insert the 2x4. Place several screws into the small Support Box to properly adhere the 2x4 into proper

position.

Insert the small box in the channel. At this point, do not adhere the small support box to anything.

Place the large support box into the channel and over the top of the small box. Place the CleanCut

Convertible into position and compress downward to determine the proper height and placement

for the support box structure.

Once the support of the CleanCut Convertible has been achieved, remove, mark both the left and right

ends of the small box where the large box is compressed while the boxes are in the tub opening

channel. Once properly marked, remove both support boxes and label the markings “Left” and “Right”

to avoid potential confusion. Uncompress the two support boxes from one another and begin the

process to permanently adhere the boxes in proper position.

Apply adhesive around the perimeter of the large box. Compress the

small and large support box

structures back together to the appropriate markings made earlier on the small box. Place the support

structure back into the channel and insert the CleanCut Convertible to verify that proper placement has

been achieved. Secure both sides of the support structure by placing 2 screws in each side. Make any

final adjustments to the CleanCut Convertible or the support structure at this time (FIGURE 8).

Apply adhesive to the tops of the 2x4’s that are already in place in the channel if they are needed for

height, and insert the support box structure.

Place the CleanCut Convertible into position once more to inspect the fit and position. This is the

final opportunity to make any adjustments, if necessary.

Once the support structure is properly positioned, apply the waterproof membrane over the entire cut out

portion of the tub. First, unfold the membrane that was included in the installation kit. It will be

necessary to cover the entire area of the tub cutout, including the two sidewalls. Remove the paper

backing and stretch the membrane material to cover the area over the support boxes and sidewalls and

adhere approx. ½” onto each side of the tub. It will be necessary to trim excess membrane material.

Small Box

FIGURE 7

Drywall Screws Holding 2x4 (each side)

FIGURE 8

1 ¼” Drywall Screws