Calspas patio plus - Spa Installation Guidance; Preparing a Good Foundation

2017 Portable Spa
LTR20171001, Rev. C
Preparing for Your New Portable Spa
www.calspas.com
4
Your spa needs a solid and level foundation. The area
that it sits on must be able to support the weight
of the spa and the occupants who use it. If the
foundation is inadequate, it may shift or settle after
the spa is in place, causing stress that could damage
your spa shell or nish.
Damage caused by inadequate or improper
foundation support is not covered by the
warranty. It is the responsibility of the
spa owner to provide a proper foundation
for the spa.
Place the spa on an elevated 10 cm concrete slab.
Pavers, gravel, brick, sand, timbers or dirt foundations
are not adequate to support the spa.
We strongly recommended that you have a qualied,
licensed contractor prepare the foundation for your
spa.
If you are installing the spa indoors, pay close
attention to the ooring beneath it. Choose ooring
that will not be damaged or stained.
If you are installing your spa on an elevated wood
deck or other structure, it is highly recommended
that you consult a structural engineer or contractor
to ensure the structure will support the weight of 732
kg / m2 (150 lbs / ft2).
To properly identify the weight of your new spa
when full, remember water weighs 1 kg per liter. For
example, an average 2.4 meter (8 foot) spa holds
approximately 1892 liters of water. Using this formula,
you will nd that the weight of the water alone is
1892 kg. Combined with the dry weight of the spa
you will note that this spa will weigh approximately
2267 kg when full of water.
Preparing a Good Foundation