User's Manual

Page 69
J-400 Series
Consult your Jacuzzi dealer if you have any questions regarding winter
use or winterizing.
13.8 Restarting Your Spa in Cold Weather
If you want to start up your spa after it has sat empty for a time in
freezing temperatures, be aware that the water remaining in certain
sections of the piping may still be frozen. This situation will block water
ow preventing the spa from operating properly and possibly damaging
the equipment. We recommend you consult your dealer for guidance
before attempting to restart your spa under these conditions.
14.0 Water Quality Maintenance
Maintaining the quality of the water within specied limits will serve to
enhance your enjoyment and prolong the life of the spa’s equipment. It
is a fairly simple task, but it requires regular attention because the water
chemistry involved is a balance of several factors. There is no simple
formula, and there is no avoiding it. Procrastination in regard to water
maintenance will result in poor and potentially unhealthful conditions for
soaking and even damage to your spa investment. For specic guidance
on maintaining water quality, consult your Authorized Jacuzzi dealer
who can recommend appropriate chemical products for sanitizing and
maintaining your spa.
CAUTION: Never store spa chemicals inside the spa’s
equipment bay.
14.1 pH Control
pH is a measure of relative acidity or alkalinity of water and is measured
on a scale of 0 to 14. The midpoint of 7 is said to be neutral, above which
is alkaline and below which is acidic. In spa water, it is very important
to maintain a slightly alkaline condition of 7.4 to 7.6. Problems become
proportionately severe the further outside of this range the water gets.
A low pH will be corrosive to metals in the spa equipment. A high pH will
cause minerals to deposit on the interior surface (scaling). In addition,
the ability of the sanitation agents to keep the spa clean is severely
affected as the pH moves beyond the ideal range. That is why almost all
spa water test kits contain a measure for pH as well as sanitizer.
14.2 Sanitizing
To destroy bacteria and organic compounds in the spa water, a sanitizer
must be used regularly. Chlorine and bromine are the two most popular