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b. Check the chemical balance of the water. If the
pH is incorrect, the sanitizing agents will not
function properly.
10. SYMPTOM: THE SPA JET UNIT CONTINUES
TO RUN AFTER IT HAS BEEN SHUT OFF
a. When you press the on/off button once, the spa
jet unit will run at low speed, heating the water.
Press the button again and the spa jet unit will
run at high speed, filtering the water. Press the
button a third time and the spa jet unit will shut
off. The spa jet unit also features an automatic
mode, which heats and filters the water when
the spa is left unattended. When the spa jet
unit is first plugged in, or if the buttons on the
console have not been used for longer than
twenty minutes, the automatic mode will begin
filtering or heating the water, as needed. To
keep the filter and heat cycles from running,
the power cord must be unplugged. Special
Note: If the unit is to be kept outdoors in
cold weather, you must allow the spa to
maintain a safe temperature by running in
automatic mode. Allowing the spa jet unit to
freeze will damage the unit. If you do not
want to use the spa during the winter, store
it in a warm, dry location (see WINTER USE
AND CARE on page 13).
11. SYMPTOM: THE WATER LEVEL DROPS
a. Some water loss due to evaporation is normal.
If rapid water loss occurs, or if you notice wet-
ness on the floor around the RENEW 900, then
the liner may have a leak. Locate the leak, and
patch it using a pool patch kit that you can pur-
chase at any pool and spa supply store.
b. A clamp or seal inside the spa jet may be
loose. Check the floor around the spa jet unit
for excess water, and watch the spa jet unit
while it is operating to see if water drips from
the spa jet unit housing. If you can identify the
location of the leak inside the spa jet unit, tight-
en the clamp or replace the damaged seal.
12. SYMPTOM: THE INFLATABLE SPA LINER
LOSES AIR
a. Over time, some air loss is normal. If rapid air
loss occurs, then the liner may have an air
leak. Locate the leak, and patch it using a pool
patch kit that you can purchase at any pool and
spa supply store.