Manufactured by: King Technology
530 11th Ave S, Hopkins, MN 55343 U.S.A.
952-933-6118 • Customer Service 800-222-0169
frogproducts.com
Made in U.S.A. Patents: kingtechnology.com/IP
EPA Est. No.: 071209-AZ-001 E083018553091843N
20-48-0173
* Compared to the minimum ANSI recommended bromine level of 2.0 in a residential hot tub.
®
Fill hot tub with fresh water.
Metal
Out
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.
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).
IMPORTANT: Always follow printed instructions on the balancing
chemical packages. Add balancing chemicals in small incre-
ments one at a time with the jets on and wait 6 hours before
testing again and adding any additional balancing chemicals.
Step 1: Prepare the Hot Tub
1.
Balance water by following STEPS a — d in order.
2.
3.
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 Calcium 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.
Very Important! Establish an initial
residual of 1.0-2.0 ppm bromine or
chlorine. For best results use FROG
Jump Start
®
(EPA Reg. #53735-12)
that quickly dissolves with an efferves-
cent action – one packet per 600
gallons. Do not use a non-chlorine shock. Confirm proper
residual amount before employing FROG Serene Floating System.
Heat water to the manufacturer’s recommended
temperature.
4.
5.
Water Balance Guidelines
pH: 7.2 – 7.8
Total Alkalinity: 80 - 120 ppm
Calcium Hardness: 150-250
Total Dissolved Solids: <1500
4.
1.
1.
2.
3.
Insert both cartridges into the
green floating holder by pushing
them into the openings until
they stay in place.
The FROG Serene Floating
System has two replaceable
cartridges.
Step 2: Set the Cartridges
Step 3: Put the System to Work
Replacing Cartridges
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
Set the bromine cartridge to the setting that matches
your hot tub size in gallons.
Set the mineral cartridge to #6
(hold the bottom and turn the
top until 6 appears in the setting
window). No further adjustments
are necessary for the life of this
cartridge.
Blue =
FROG Serene
Mineral Cartridge
Yellow =
FROG Serene
Bromine Cartridge
The combination provides the
Fresh Mineral Water
®
benefits of
cleaner, clearer and softer water
that’s easier to take care of.
Replace blue MINERAL CARTRIDGE every four months.
Let the Floating System free-
float in the hot tub.
When using the hot tub, simply
remove FROG Serene Floating
System, drain the water into the
hot tub and invert on the side of
the hot tub.
REMEMBER TO RETURN FROG
SERENE FLOATING SYSTEM TO
HOT TUB WHEN YOU GET OUT!
2.
3.
4.
b. Drain water from cartridge to
ensure it is empty.
a. Discard it in the trash even if it
appears to have media left inside.
b. Don't attempt to reuse: the
minerals are spent after 4 months.
Replace yellow BROMINE CARTRIDGE when empty.
a. Life of cartridge varies depend-
ing on hot tub size and number of
users.
c. Discard in trash or offer for recycling
if available.
SETTING
WINDOW
1.
Drain and refill hot tub as direct-
ed by your hot tub manufacturer
or every four months when FROG
minerals need to be replaced.
Step 4: Routine Hot Tub Care
2.
3.
4.
5.
6.
Replace mineral cartridge and
bromine cartridges as directed in
Step 3.
Shock the hot tub once a week
or as needed with a non-chlorine
shock.
Heavily used hot tubs may require
more frequent shocking.
Maintain at least 1.0 ppm bromine
level at all times.
Note: Bromine or chlorine levels are
lower only when used with FROG
minerals.
Regularly test water. Maintain
pH, Total Alkalinity and Calcium
Hardness levels with the precise
FROG Test Strips.
NOTE: Water balance is affected
by bather load, chemical usage,
evaporation and the makeup of
source water so maintaining water
balance regularly is important.
Run filtration system as
recommended by your hot tub
manufacturer.
Troubleshooting
• Check FROG Serene Bromine Cartridge. If empty, replace
following directions in Step 3: Put the System to Work.
• Make sure your FROG Serene Mineral Cartridge is not older
than 4 months as it will be ineffective and more bromine will be
required to maintain the hot tub until you replace the minerals.
• Shock the hot tub with a non-chlorine shock to regain clarity.
• Cloudy Water or Low-Bromine Levels
• Remove the system from the
hot tub until the bromine level is
down to 2.0 ppm.
• Lower the Bromine Cartridge
setting by 1 number and replace
system in the hot tub.
• Test in 24 hours. Repeat pro-
cess until bromine level stays
within 1.0 to 2.0 ppm.
• High Bromine Levels
• Check water balance.
Ensure pH, Total Alkalinity
and Calcium Hardness are
correct.
WE RECYCLE
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
FROG Serene sanitizes your
hot tub by creating
Register your FROG Serene System at frogproducts.com
Learn more at frogproducts.com or call 800.222.0169
®
Floating System
Operating
Instructions
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