21 3
Water Balance Guidelines
pH: 7.2 - 7.8
Total Alkalinity: 80 - 120 ppm
Hardness: 150 - 250 ppm
Total Dissolved Solids: <1500
Cyanuric Acid: 0 - 50 ppm
Metal
Out
Step 3: Put the System to Work
DO NOT OPEN CAP WHILE JETS
ARE ON.
1.
Open cap of In-Line
System and set aside.
Remove holder
by pushing
down
and turning
counter clock-
wise 1/8th
turn before
pulling out.
2.
Ver la versión en español de este manual en frogproducts.com
®
In-Line System
Operating
Instructions
FROG Serene
Mineral Cartridge
(Blue)
FROG Serene
Bromine Cartridge
(Green)
Cleaner
because it kills bacteria two ways
Clearer
because it helps keep pH balanced
Softer
because there’s up to 50%* less bromine
Easier
with pre-lled cartridges for no mess, or measuring
The In-Line System is made up of:
(A) a cap that is easily distinguish-
able among the ttings on the top
of the hot tub
(B) a cartridge holder that pulls out
of the system
(C) a FROG Serene Mineral
Cartridge that helps control
bacteria in the water
(D) a FROG Serene Bromine
Cartridge that helps support the
minerals while oxidizing contami-
nants like body oils and ammonia
compounds responsible for smelly
chloramines. The cartridges are
adjustable to meet your specic
hot tub water care needs.
C.
FROG
Serene
Mineral
Cartridge
Water
Flow
A. Cap
B.
Cartridge
Holder
D.
FROG
Serene
Bromine
Cartridge
Cut-away view of cartridges
snapped into holder and
placed into the FROG
®
Serene™ In-Line System.
Step 1: Prepare the Hot Tub
3.
IMPORTANT: Always follow printed instructions on the balancing
chemical packages. Add balancing chemicals in small increments one at a
time with the jets on and wait 6 hours before testing again and adding any
additional balancing chemicals.
b. Look at the Total Alkalinity reading first. Adjustments
should be made to bring the Total Alkalinity in the range of
80 – 120 ppm prior to making any adjustments to pH even if
it throws pH off further.
a. Take a water sample from the hot
tub and dip a FROG Test Strip into it.
Balance water by following STEPS
a — d in order.
c. After Total Alkalinity is in range, test for pH. It should be
between 7.2 and 7.8. If higher or lower, add a pH adjuster.
d. Lastly test for Hardness. It should be between 150 and 250
ppm. If higher, partially drain the hot tub (about 6 inches) and fill with
water low in calcium. If lower, add Calcium Increaser.
If balancing takes longer than 2 days, shock the water and
maintain a chlorine level while continuing balancing.
Fill hot tub with fresh water.
If using source water that is high in
iron or other metals, see your dealer
before filling the hot tub. It may
require the use of a metal control
product.
Clean or replace filter cartridges
when dirty.
(Follow manufacturer’s instructions).
1.
2.
Very Important! After balancing
and before using cartridges, establish
an initial residual of 1.0 - 2.0 ppm free
chlorine with FROG Jump Start
®
start-
up shock that quickly dissolves with
an effervescent fizzing action – one
packet per 600 gallons.
4.
Heat water to the manufacturer’s recommended
temperature.
5.
FOR SPAS AND HOTTUBS
Step 2: Set the Cartridges
Set the blue FROG Serene Mineral
Cartridge to #6 (hold the bottom and
turn the top until 6 appears in the win-
dow). No further adjustments are nec-
essary for the life of the cartridge.
Set the green FROG Serene Bromine
Cartridge to the setting that match-
es your hot tub size in gallons.
For one week test the water daily
with FROG Test Strips and adjust
cartridge up or down by 1 setting
per day until the color on the test
strip matches the ideal FROG bromine
range of 1.0 to 2.0 ppm.
System Setting Chart
200 Gallons 0
250 Gallons 1
300 Gallons 1
350 Gallons 2
400 Gallons 3
450 Gallons 4
500 Gallons 5
550 Gallons 5
600 Gallons 6
SETTING
WINDOW
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