I have a large Inground fiberglass 1174 gallon 12 person spa. I had owned pools before but never a spa and finding any maintenance guidance for a spa that large is practically non existent. My chemical usage (to me) was very high. I have an external filter and 3 pumps similar to a pool setup. I use a bromine floater that I had to keep filling frequently as well as adding PH increaser, calcium and non chlorine MPS shock 2-3 times A WEEK.
I was searching for something to help lower and more evenly balance the chemical swings when I learned about the Frog products. While Frog spa products are tested up to only 600 gallon spas, they were very helpful in working with me to fine tune the best fit for my spa.
I decided to use the frog filter mate and expect to change it more frequently than the recommended 4 months due to the size of my spa.
It’s now been almost 2 months and from the moment I installed the filtermate in my canister filter, my chemical usage has significantly decreased (way more than Frog advertises)! The bromine tabs in the floater last 3-4 times longer, I have not had to add the MPS shock more than once every couple of weeks. The PH increaser is now once every couple of weeks and I have only added calcium once. I live in Texas and with 90-100 degree heat in August, it was a true test for the mineral sanitizer stick.
To my knowledge there is not a test that can tell when it stops working and needs to be replaced but knowing what my prior chemical usage was compared to now, I’m sure I will know.
I am sold on the filtermate and will use this system for any pool/spa I have in the future.
FROG® Filter Mate®
Hot tub mineral sanitizer that reduces the use of chlorine or bromine by up to 50%*
Placed in the center of your hot tub filter cartridge, these proprietary FROG Sanitizing Minerals® create Fresh Mineral Water®∞ while reducing the use of chlorine or bromine. Enjoy months of cleaner, clearer and softer water that doesn’t fade swimsuits, damage equipment or create harsh odors.
Starting at $40.95
Find a Dealer* Compared to the minimum ANSI recommended bromine or chlorine level of 2.0 ppm for a hot tub
∞ Cleaner, Clearer and Softer water for pools, hot tubs and swim spas
Benefits
- Fits inside your hot tub filter cartridge or in the filter well
- Reduces the amount of chlorine or bromine by up to 50%*
- Time-released formula lasts 4 months
- Balance the water: Adjust Total Alkalinity to 80–120 ppm, pH to 7.2–7.6 and Total Hardness to 150–250 ppm.
- Set the dial: Turn the reminder dial by hand or with a coin to the month that is four months ahead of installation.
- Trim if needed: If the stick is too long for your filter core, cut off part of the bottom stem using the designated notches.
- Insert FROG Filter Mate down into the center core of the filter cartridge. Place in the filter well or skimmer tray if it blocks water flow.
Frequently Asked Questions
FROG Filter Mate is a prefilled mineral sanitizer that fits inside your filter cartridge and automatically dispenses the right amount of sanitizing minerals in your hot tub to help reduce chlorine or bromine usage and create Fresh Mineral Water∞.
FROG Filter Mate lasts 4 months or whenever you drain and refill the hot tub.
FROG Filter Mate is designed for hot tubs up to 600 gallons. It fits in the center of most filter cartridges; if it is too long you can cut off part of the stem using the notches. It also can be placed in the filter well or skimmer tray.
Fresh Mineral Water∞ is our signature water quality experience — clean, clear and silky-soft water made possible by our patented mineral technology combined with significantly lower levels of chlorine or bromine. The result is water that’s gentler on skin and free from the harsh feel and strong odors of traditional hot tub care.
1 FROG Filter Mate
You may set it in the filter well or skimmer tray. If it is too long, you can cut off part of the stem using the notches.
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