
Very Important! Before using car-
tridges, establish an initial residual of
0.5 - 1.0 ppm free chlorine with FROG®
Jump Start®(EPA Reg. No.: 53735-12)
start-up shock, included in this package,
that quickly dissolves with an effervescent fizzing action – one
packet per 500 gallons.
4.
FOR SPAS AND HOTTUBS
®
Step 1: Prepare the Hot Tub
• Check water balance. pH and
Total Alkalinity need to be in the
proper ranges for the SPA FROG
In-Line System to work correctly.
• Check SPA FROG Bromine
cartridge and replace if empty—
see instructions under “Put the
System to Work”.
• Check your calendar. The SPA
FROG mineral cartridge needs to
be replaced every four months.
• Remove the SPA FROG Bromine
Cartridge from the In-Line System
until the bromine level is down to
2.0 ppm.
• Lower the Bromine Cartridge
setting by 1 number and replace
cartridge in the In-Line System.
• Test in 24 hours. Repeat process
until bromine level stays within 1.0
to 2.0 ppm.
Step 2: Set the Cartridges
Step 3: Put the System to Work
Step 4: Routine Hot Tub Care
Troubleshooting
Manufactured by: King Technology, Inc.
530 11th Ave S, Hopkins, MN 55343 U.S.A.
952-933-6118 • Customer Service 800-222-0169
FAX 952-933-2206 www.FrogProducts.com
SPA FROG®
In-Line System
Operating Instructions
• Cloudy Water or Low-Bromine Levels • High Bromine Levels
Made in U.S.A. Patents: www.KingTechnology.com/IP
EPA Est. No.: 071209-AZ-001
E092816553101643R3N 20-48-0169
Remove holder by pushing down
and turning counter clockwise
before pulling out.
Replace blue Mineral Cartridge every four months.
• Discard it in the trash even if it appears to have media left inside.
• Don’t attempt to reuse: the minerals are spent after 4 months.
Replace green Bromine Cartridge when empty.
• Life of cartridge varies depending on hot tub size and number
of users.
• Drain water from cartridge to ensure it is empty.
• Discard in trash or recycle.
Set the blue Mineral Cartridge to #6
(hold the bottom and turn the top until
6 appears in the window). No further
adjustments are necessary for the life of
the cartridge.
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 SPA FROG Mineral Cartridge
that helps control bacteria in the
water
(D) a SPA FROG Bromine Cartridge
that helps support the minerals
while oxidizing contaminants like
body oils and ammonia compounds
responsible for smelly chloramines.
The cartridges are adjustable to
meet your specic hot tub water
care needs.
C.
SPA FROG
Mineral
Cartridge
Water
Flow
A. Cap
B.
Cartridge
Holder
D.
SPA FROG
Bromine
Cartridge
3.
Heat water to the manufacturer’s recommended
temperature.
5.
6. Begin routine hot tub care (see Step 4: Routine Hot
Tub Care) as soon as hot tub is prepared.
Water Balance Guidelines
pH: 7.2 – 7.8
Total Alkalinity: 80 - 120 ppm
Calcium Hardness: 150 - 250 ppm
Total Dissolved Solids: <1500
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 Calcium Hardness. It should be between
150 and 250 ppm. If higher, partially drain the hot tub (about 6 inch-
es) 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.
Metal
Out
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.
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
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
Clean or replace filter cartridges.
(Follow manufacturer’s instructions).
1.
2.
Slowly insert holder into system (see
diagrams). Line up holder arrow-(1)
with system arrow-(2). Push down until
holder tabs-(3) go past system tabs-(4)
and turn holder to the right (clockwise)
until it stops. To ensure a locked
position, attempt to pull holder up.
If it stays in place, the lock is secure.
-System
Arrow
3-Holder
Tab
1-Holder
Arrow
4-System
Tab
Replace
Cap
Snap the SPA FROG Mineral Car-
tridge into the area marked “Miner-
als” (top portion) and the SPA FROG
Bromine Cartridge into the area
marked “Bromine or SmartChlor”
(bottom portion) making sure to
line up the indentation at the top
of the cartridges with the raised
area on the holder.
DO NOT OPEN CAP WHILE JETS
ARE ON.
3.
4.
5.
1.
Replacing Cartridges
2.
Open cap of In-Line System and
set aside.
BRAND
BRAND
Lubricate in-line holder o-ring twice a year with a silicone
lubricant.
Shock the hot tub once a week or as
needed with a non-chlorine shock.
Heavily used hot tubs may require
more frequent shocking.
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.
2.
3.
6.
7.
Run filtration system as the
manufacturer recommends
to maintain proper water flow
through the In-Line System.
Regularly test water with FROG
Test Strips and follow directions
in Step 1 for maintaining pH,
Total Alkalinity and Calcium
Hardness.
NOTE: pH is affected by bather load, chemicals used, evapo-
ration and the make-up of your source water so maintaining
water balance regularly is important.
Replace mineral and bromine cartridges
as directed in Step 3: Put the System to
Work.
Cut-away view of cartridges
snapped into holder and
placed into the In-Line
System.
Set the green Bromine Cartridge to
the setting that matches your hot
tub size in gallons.
Register your
In-Line System at
FrogProducts.com
Learn more at www.FrogProducts.com or call 800.222.0169
* Compared to the minimum ANSI recommended bromine level of 2.0 in a
residential hot tub.
SPA FROG Mineral
Cartridge (Blue)
SPA FROG Bromine Cartridge
(Green)
5.
4. Maintain at least a 1.0 ppm bromine level at all times.
Note: Bromine levels are reduced up to 50%* when
using FROG minerals.
2
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
BRAND
*Minerals
*Bromine or
SmartChlor
NOTE: Using
the bromine
cartridge in
the area
marked
“Minerals”
can cause over
bromination
which shortens
cartridge life.
Indent on
cartridges
Raised
area inside
holder,
one for
each
cartridge