ZEN Cedar Assembly, Installation & Maintenance Instructions Download Page 11

 Tub Diameter 

 (feet) 

 Number of 

 benches 

 Bench 

 arrangement 

 4 round 

 1 

 One end 

 5 - 8 round 

 3 

 Full circle 

 4 ellipse 

 1 

 One end 

 5 ellipse 

 2 

 Opposite ends 

 6 ellipse 

 3 

 Opposite ends, 

 one side 

 7 & 8 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 benches in the tub on the floor. 
 Adjust them to the orientation you desire. Consider 
 placing the benches so the drain is accessible. Then set 
 the blocks on top of the benches to gauge where they will 
 be later after the benches are above and the blocks below. 
 This just makes it easier to see your alignment with gaps 
 in the benches (for vertical screws) and the stave seams 
 (for horizontal screws).  The vertical screws will go down 
 through the bench braces (underside frame pieces), 
 between the seating surface boards, into the top of the 
 blocks. Don’t forget to adjust as necessary to eliminate 
 any screw to stave seam interferences. Then lightly mark 
 with a pencil where your bench blocks will go. See Figure 
 4.3 for typical orientation of benches and drain. See 
 Figure 9.2 for the installation of bench blocks. 

 Once the proper location for all blocks is determined, 
 remove the benches; attach bench blocks to the side of the 
 tub with 3” screws. 

 IMPORTANT: Do not drive a 

 screw into the seam between two staves!  This will 
 cause a leak. 

 Consider using packaging foam or cardboard to protect 
 the floor of the tub if you decide to enter the tub for this 
 step. 

 Finally attach the benches to the blocks by placing the 
 bench segments on top of the bench blocks, apply 
 downward pressure and then drive the 3” screws between 
 the bench boards, through the braces, and into the top of 
 the bench blocks.  See Figures 9.3 and 9.4. 

 Figure 9.3 Attach benches to bench blocks with 3” stainless 
 screws between the bench boards, through the braces, and  into 
 the tops of the bench blocks 

 Figure 9.4 Benches installed 

 Tub Access Steps: 

 If you purchased steps from us, they are intended to be 
 placed next to the tub and should be held in place with 
 two stainless screws.  Drive the screws through the steps 
 and right into the side of the tub to provide stability. 
 Alternatively, you can build a set of steps that work best 
 for your site design. 

 Cover: 

 The vinyl and foam cover is the main insulation for your 
 tub.  It should provide years of good service.  Avoid 
 punctures or tears, which could allow water to get inside 
 the cover.  If you live in a high wind area, you will need 
 to secure the cover so it doesn’t blow off.  This can be 

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Summary of Contents for Cedar

Page 1: ...ments Section 1 Packing List Locate the enclosed packing list to identify and con rm that all items are included A copy of the packing list is inside the packaging See Figure 1 1 to help identify the...

Page 2: ...actor is recommended 3 3 Another alternative is to use adjustable concrete pier blocks as a foundation This type of pier block is available at most home improvement stores and allows you to adjust the...

Page 3: ...t max lengths inches 4 circle 3 30 43 30 5 circle 4 33 48 48 33 6 circle 4 34 62 62 34 7 circle 5 48 72 78 72 48 8 circle 5 52 78 90 78 52 4 ellipse 3 20 40 20 5 ellipse 3 30 52 30 6 ellipse 4 34 62 6...

Page 4: ...pe in place OR change pipe lengths and or install any adapters or ttings you wish for a custom installation Use 1 schedule 40 PVC Figure 5 1 Drain assembly and silicone bead being applied to the reces...

Page 5: ...is level and oriented as you want it Reminder the oor seam needs to be perpendicular to the chine joists Also check that the ends of the chine joists are at least 2 inches inside the edge of the tub o...

Page 6: ...ay slightly increase these height di erences Either way you may wish to sand the top rim again after you have installed and tightened the retention bands However this does not a ect tub function or lo...

Page 7: ...Keep an eye on the oor seam in the process of installing staves It should stay closed If it spreads a bit rap the opposing sides of the oor with your mallet Make sure that the temporary plywood braces...

Page 8: ...try it to see if it works No gaps more than 1 16 Double check Be sure Don t continue if it doesn t seem right It s much harder to x later and can be the di erence in a tub that seals up quickly or a t...

Page 9: ...s to have any gaps between the bottom of staves be no more than 1 16 AND distributed evenly around the tub circumference NOT all in one section If necessary use your mallet to strike the staves from t...

Page 10: ...passes through from twisting as you do the nal tightening Stop when further tightening becomes signi cantly more di cult and you see noticeable de ection of the aluminum blocks This indicates the bot...

Page 11: ...re 4 3 for typical orientation of benches and drain See Figure 9 2 for the installation of bench blocks Once the proper location for all blocks is determined remove the benches attach bench blocks to...

Page 12: ...e staves and prolong the life of the tub Repeat the wax treatment on the end grain similarly to the teak oil schedule Often at rst Note There s no harm in over oiling or over waxing If the wood doesn...

Page 13: ...biweekly at rst to help clarify the water This e ect will diminish slowly with time Once this is complete it will be crystal clear It will likely take a few months Another option to assist in this is...

Page 14: ...ing the tub unused for extended periods of time If you need to leave the tub unused while on vacation or for other reasons that is ok The tub will not be permanently damaged by drying out but will hav...

Page 15: ...dation and chine joists under the tub If the foundation is uneven the tub will need to be drained and moved and the foundation problem xed 4 Once more substantial problems have been ruled out and if t...

Page 16: ...ed warranty of one year The warranties when valid will only cover replacement parts and materials Under no circumstances will Zen Bathworks be held liable for any cost of labor or damage Section 17 Pa...

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