Installation
Page 6
Wood decking is acceptable provided it is constructed so that it meets the requirements
outlined on the previous page. However, we recommend a poured, reinforced concrete slab
(minimum 4 inches thick) as shown below.
Start with the forms built from 2X4’s and 1X2 stakes as shown above. The foundation must be
as large as the bottom of the hot tub. Dig down 2 inches below the bottom of the forms and fill
back to the bottom of the forms with clean sand. It is recommended that you lay a 1-foot-
square grid of 1/2” reinforcing rods over the level sand bed, tying them together with bailing
wire. Mix concrete and pour it into the form, spreading it evenly with a sturdy steel rake. Level
concrete with a screed built from 1X4’s as shown above. Pull the screed toward you with a
side-topside zigzag motion. When concrete is leveled, smooth out with a large mason’s float.
Allow concrete to cure at least one week before setting tub.
Screed
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