FROG Serene CA1045 Mineral Cartridge In-Line System Instruction Manual

In-Line System Operating Instructions

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-filled cartridges for no mess, or measuring

Cut-away view of cartridges snapped into the holder and placed into the FROG® Serene™ In-Line System.

The In-Line System is made up of:

(A) a cap that is easily distinguishable among the fittings 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 helps support the minerals while oxidizing contaminants like body oils and ammonia compounds responsible for smelly chloramines. The cartridges are adjustable to meet your specific hot tub water care needs.

Step 1: Prepare the Hot Tub

1. Fill the hot tub with fresh water.
   If using source water that is high in iron or other metals, see your deal before filling the hot tub. It may require the use of a metal control product.

2. Clean or replace filter cartridges when dirty. (Follow manufacturer’s instructions).

3. Balance water by following STEPS a — d in order.
   IMPORTANT: Always follow printed instructions on 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.
   Water Balance Guidelines

a. Take a water sample from the hot tub and dip a FROG Test Strip into it.
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.
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.

4. 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.
   

5. Heat water to the manufacturer’s recommended temperature.

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 window). No further adjustments are necessary for the life
of the cartridge.

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 green FROG Serene Bromine Cartridge to the setting that matches your hot tub size in gallons. For one week test the water daily with FROG Test Strips and adjust the 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.

Step 3: Put the System to Work

1. Open the cap of In-Line System and set aside.
   DO NOT OPEN THE CAP WHILE JETS ARE ON.

2. Remove holder by pushing down and turning counter-clockwise 1/8th turn before pulling out.
   

3. Snap the FROG Serene Mineral Cartridge into the area marked “Minerals” (top portion) and the FROG Serene 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.
   

4. Slowly insert the holder into the system. Line upholder 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 the holder up. If it stays in place, the lock is secure.
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5. Replacing Cartridges
   Replace blue FROG Serene Mineral Cartridge every 4 months or when draining and refilling hot tub.
   • 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 FROG Serene Bromine Cartridge when empty.
   • Life of cartridge varies depending on hot tub size and the number of users.
   • Drain water from the cartridge to ensure it is empty.
   • Discard in trash or offer for recycling if available.

Step 4: Routine Hot Tub Care

1. Drain and refill the hot tub as directed by your hot tub manufacturer. Whenever you drain and refill, make sure to replace your FROG Serene Minerals.

2. Run a filtration system as recommended by your hot tub manufacturer to maintain proper water flow through the system.

3. Regularly test the water with FROG Test Strips and follow directions in Step 1 for maintaining pH, Total Alkalinity, and Calcium Hardness.
   NOTE: pH is affected by the bather load, chemicals used, evaporation, and the make-up of your source water so maintaining water balance regularly is important.

4. Maintain at least a 1.0 ppm bromine level at all times.
   Note: Bromine levels are lower only when used with FROG minerals.

5. Shock the hot tub once a week or as needed with FROG Maintain™, a non-chlorine shock for easy single-dose shocking. Additional shocking may be required if the hot tub is under heavy use.

6. Replace FROG Serene Mineral Cartridge and FROG Serene Bromine Cartridge as directed in Step 3: Put the System to Work.

7. Lubricate in-line holder o-ring twice a year with a silicone lubricant.

Troubleshooting

• Cloudy Water or Low-Bromine Levels

• Check water balance. pH and Total Alkalinity need to be in the proper ranges for the FROG Serene In-Line System to work correctly.

• Check FROG Serene Bromine Cartridge and replace if empty, replace following directions in Step 3.

• 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 FROG Maintain, a non-chlorine shock.

• High Bromine Levels

• Remove the FROG Serene Bromine Cartridge from the In-Line System until the bromine level is down to 2.0 ppm.

• Lower the FROG Serene Bromine Cartridge setting by 1 number and replace the cartridge in the In-Line System.

• Test in 24 hours. Repeat the process until the bromine level stays within 1.0 to 2.0 ppm.

Manufactured by: King Technology, Inc.
530 11th Ave S, Hopkins, MN 55343 U.S.A.
952-933-6118 • Customer Service 800-222-0169 frogproducts.com
Learn more at frogproducts.com or call 800.222.0169

• Compared to the minimum ANSI recommended bromine or chlorine level of 2.0 ppm in a residential hot tub.
  For pools and hot tubs.
  Made in the U.S.A. Patents: kingtechnology.com/IP

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