Nordic IMPULSE Owner's Manual page 25

STEP 5: FILTRATION
Your new spa will require a certain amount filtration
time to keep the water clean and sparkling. The factory
default setting is F2 which means your hot tub will filter (2)
continuous hours, twice a day. If you change the setting to
F4, it will filter (4) continuous hours at a time twice a day.
You may need more than this depending on the bather load
and frequency of use. Your dealer or authorized service
representative will be able to give you recommendations
based on your anticipated use.
The default start time is the time you power-up your spa
with the breaker. The first filtration cycle will begin within
a few minutes of power-up. The 2nd filter cycle will begin
12 hours later. You can use this power-up timing to control
when your hot tub runs. This is useful for avoiding on-peak
electric charges or avoiding filtering during the heat of
the afternoon in warmer climates. (this helps stabilize the
temperature)
NOTE: Please reference the topside control instructions
earlier in this manual for further instructions on setting the
filter cycles.
Additional Note: Your dealer or authorized service
representative will be your best resource for water
chemistry-related questions that you may have. They will be
happy to answer any questions that you may have.
DO'S AND DON'T S
• Do add chemicals slowly into the filter basket,
floating weir, or skimmer face
• Do use only granular sodium dichlor
(chlorine)
• Do remove the hot tub cover to prevent
damage when adding chemicals and for 30
minutes after to allow for proper off-gassing
• Don't use any formed tablet or bar sanitizers
• Don't use a floater for chemical distribution
o They have a tendency to over-sanitize or
under-sanitize your water
o Damage to the shell can occur
o This will not be covered under warranty
• Don't use any sanitizer that is not designed
specifically for hot tub use
• Don't splash any chemicals on the shell
or siding (please clean immediately with a
garden hose and cloth)
• Don't use swimming pool (muriatic) acid to
lower pH
• Don't use household bleach to sanitize the
water (liquid sodium hypochlorite)
• Don't sprinkle any chemicals onto the water
surface unless it is above the filter (except
Bella)
NORDIC HOT TUBS
25
| OWNER'S MANUAL |