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There are many possible ways to install your new Reliance tub, and some may require different framing
than the following instructions. Keep in mind that the framing should always provide a level surface
for the rim of the tub and sufficient space below the tub for bedding compound. Access must be
provided to each pump and/or electrical component on your tub. The access panels must have
a minimum size of 16” x 14” for installation and future servicing of the pump and/or electrical
equipment. MTI will not authorize any service unless clear access is available. Access from a
crawlspace or incomplete access to all equipment may result in warranty claims being denied.
Additional access to plumbing xtures is strongly recommended. It is the responsibility of the installer
to comply with local plumbing codes regarding pump and plumbing access. Note: Do not allow any
material such as insulation within 8” of pump. Pump must have sufcient air space surrounding it for
circulation and proper operation.
GENERAL INSTALLATION GUIDELINES
Do not begin building any structure for your tub until your tub arrives. All printed specica-
tions for Reliance tubs have +/- ½” tolerance AND ARE SUBJECT TO CHANGE AT ANY TIME.
Take all nal installation dimensions from your tub. Note: add approximately 2-3 inches to
the overall tub height for drop-in tubs equipped with pre-leveled foam base and/or pre-leveled
frame. The bolts/screws through the mounting feet on the pump may be loosened or removed
once the tub is in place if necessary for future servicing.
Reliance tubs are not equipped with leveling feet. The tub must be leveled from the top ange in both
directions and bedding compound used underneath for proper operation. Determine the nal height
of the tub rim by measuring from the underside of the rim to the oor on the drain side and add ½” to
allow for bedding compound. If your tub has a pre-leveled foam base, do not add ½” since wet-bedding
is not necessary. The tub must be leveled by the rim of the tub, and supported by the bedding (or foam
base) under the full length of the tub bottom. It is recommended to use a plastic sheet barrier on top of
and underneath the bedding compound. Carefully lower tub into place. Shift tub side to side to settle
into compound. The tub will not drain properly if not level both front to back and side to side. Use care
not to damage any plumbing, wiring or other options when bedding the tub. Let compound harden over-
night before use. Failure to properly bed the tub will void any warranty on the tub shell.
NOTE: Pre-leveled frame eliminates the need to frame the walls or use bedding compound to level the
tub, assuming the oor is perfectly level. If not, some bedding compound may be needed to achieve level.
The pre-leveled frame adds ½ to 3 inches of height, depending on the specic model of tub.
ALCOVE
Mark a level line on the stud walls using the measurement determined
above. A 2” x 2” or similar stringer will be attached to the studs touch-
ing this line. All mounting surfaces must be level to allow for proper
drainage. Framing of the same height should be constructed across
the front of the tub for skirt, tile or other material. Remember to allow
for access to each pump, blower and/or electrical component.
DROP IN
Use the above dimension as the finished deck height from the
floor. The drop in opening should be approximately 1 ½ inches
smaller than the outside dimensions of the tub. This will create
a ¾ inch ledge to support the entire rim of the tub. It is best to
have as large an opening as possible in the deck to clear the
plumbing and other tub accessories during install while still pro-
viding full support for the rim. Full size templates for oval tubs
can be purchased through your distributor.
NOTE: Most Reliance tubs are NOT undermountable.
See individual tub specification sheets.
Have tub at jobsite and measure or template very carefully before cutting any decking materials.
MTI is not responsible for any preparatory labor or materials. If your application calls for solid
surface material covering only the width of the tub flange, additional support for the solid surface material
is not necessary.
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Leveling Stringers
For whirlpools, be sure to provide
an opening of at least 16” x 14”
for pump access.
For whirlpools, be sure to
provide an opening of at
least 16" x 14" for pump
