Periodically, the cartridge will need a more thorough cleaning to remove
imbedded oils and minerals. For this, we suggest cleaning as illustrated above
(Step C), followed by soaking the filter overnight in a plastic container filled
with a solution of water and a specially formulated filter cleanser available
from your Sundance dealer. The average life expectancy of the filter cartridge
is approximately two years with proper care and water quality maintenance.
Replacement cartridges may be purchased from your Sundance dealer.

11.2 Draining and Refilling

About every 3 to 6 months, you will want to replace the spa’s water. The fre-
quency depends on a number of variables including the amount of use, atten-
tion paid to water quality maintenance, etc. You will know it is time for a
change when you cannot control sudsing and/or you can no longer get the
normal feel or sparkle to the water even though the key water balance mea-
surements are all within the proper parameters.
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Loosen filter nut to provide clearance, then
remove filter assembly.
TURN POWER TO HOT TUB OFF!
Rinse debris from filter pleats using a garden hose
and high-pressure nozzle. Start at the top and
work downward to the face. Repeat process until
all filter pleats are clean.
Submerge filter in spa and tilt each end
upward to remove trapped air bubbles from
inside each filter cavity.
Top Filter
Face
E
1. Install filter, then tighten filter nut so it just touches
filter face. DO NOT OVERTIGHTEN!
2. Turn power to hot tub back on.
Filter
Nut
Filter
Nut
Trapped
Air
Bubbles