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ZEN Cedar User Manual

ZEN Cedar
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hitting each stave a little harder now as the bottom strap is
tightened. Don’t be afraid to hit pretty hard. Continue
tightening with wrench. At this point using the mirror,
any gaps should be virtually gone. If not, stop, back up a
few steps – loosen the straps a bit and distribute the gap
as described earlier.
Now do a final tightening - but don’t overdo it. The
bottom strap is pressing against the floor on the inside, so
it will reach a point where you can tell it is tight - don’t
force it beyond that. Use vise grip pliers to clamp onto
the aluminum block that the bolt passes through to keep it
from twisting as you do the final tightening. Stop when
you see noticeable deflection of the aluminum blocks.
This indicates bottom strap is tight enough.
The upper
straps don’t need to be as tight as the bottom. If it feels
tight, it is. Do a final adjustment on the top of the staves
at this time. Remember - the wood will swell to tighten
all joints further once water is introduced.
TIP: If you have a torque wrench – the bottom strap
should be tightened to about 40 lbs. of torque (similar to
a lug nut on a vehicle), the upper ones to a lesser amount
- about 25 lbs. of torque.
Next climb inside the tub and remove the temporary floor
braces. With a tube of clear silicone caulk, place a very
small (1/4”) neat bead all around the inside corner where
the floor and the staves meet. Use your finger or a
rounded piece of wood like a tongue depressor to smooth
the bead. Also put a very small bead on the top of the
floor seam. The purpose of the silicone is to slow the
initial seepage from the dry tub - allowing the wood to
absorb more water and swell more quickly. Your tub will
hold water as a result of the expansion of the wood,
causing the joints to compress.
Your tub is now ready for installation of the heating
system and any other accessories.
Section 9: Accessories
Install any accessories in this order:
1. Heating system - see separate instructions for
your type of heater
2. Benches - see below
3. Tub Shelf
4. Access Steps - see below
5. Cover - see below
Benches:
The bench system is simple. These instructions are
specifically for circular tubs. The elliptical tub benches
fit at opposite ends, and the larger ellipse tubs (6 or 7
foot) have one or two side benches respectively. Each
bench is one section of the circle. See the table below for
the arrangement of benches for your size tub.
Tub Diameter
(feet)
Number of
benches
Bench
arrangement
4 round
1
One end
5 round
3
Full circle
6 round
3
Full circle
7 round
4
Full circle
8 round
4
Full circle
4 ellipse
1
One end
5 ellipse
2
Opposite ends
6 ellipse
3
Opposite ends,
one side
7 ellipse
4
Opposite ends,
two sides
Figure 9.2 Aligning and attaching bench blocks – DO
NOT drive a screw into a seam between staves! This will
cause a leak.
A bench is typically held in place with four blocks, which
act as legs, which are screwed directly to the inside of the
staves with the included 3” stainless screws. The bench is
then screwed down to the top of those four blocks with 3”
deck screws. Place the blocks so you can screw down
through the bench frame between the slats and into the
top of the blocks. Place the benches so the drain is
accessible. See Figure 4.3 for typical orientation of
10
REV: 2018.01.11

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ZEN Cedar Specifications

General IconGeneral
BrandZEN
ModelCedar
CategoryBathtubs
LanguageEnglish