Description
Pool FROG 6100 Mineral Reservoir: Softer, Clearer Above-Ground Pool Water on Up to 50% Less Chlorine*
Inside every Pool FROG Model 6100 sits this cartridge, and it's what turns ordinary above-ground pool water into what FROG calls Fresh Mineral Water. The FROG Sanitizing Minerals kill bacteria and absorb acids, so pH stays balanced and the water feels silky instead of harsh, all while the pool runs on up to 50% less chlorine*. Swimmers notice less chlorine smell and fewer red eyes.
Replacing it takes about five minutes and zero measuring. The minerals are prefilled and sealed, in keeping with FROG's "No Mess, No Guess, No Stress" promise. Twist off the cycler cap, trade the spent cartridge for this one, and the mineral side of your pool care is handled for the next six months.
Order code 01-12-6112 is the Series 6100 reservoir, also called the Mineral Reservoir 25K, for above-ground pools up to 25,000 gallons. It fits the Model 6100 cycler only, has a 0.99 lb label net weight, and stays effective up to 6 months or one season from first wetting.
Minerals and Chlorine Share the Work
The box puts it simply: "Minerals + Chlorine. Kills bacteria 2 ways." Because the silver-based minerals carry part of the load, the cycler only has to hold free chlorine at 0.5–1.0 ppm.
Balanced pH With Less Fuss
A second mineral in the cartridge absorbs acids. FROG says that helps keep pH in range with less monitoring, which means fewer bottles of adjuster on the shelf.
Built for Above-Ground Pools
The Series 6100 cartridge is sized for the Model 6100, FROG's above-ground cycler, and rated for pools up to 25,000 gallons.
Free Shipping on Online Orders
This reservoir ships free in the US on online orders at HotTubPirate.com.
Key Features and Benefits
- Model 6100 FitSeries 6100 cartridge, 01-12-6112.
- Up to 25,000 GallonsAbove-ground rating.
- Up to 6 MonthsOr one season, whichever is shorter.
- Up to 50% Less Chlorine*Holds 0.5–1.0 ppm.
- Slot-and-Fin FitSeats only one way.
- PrefilledNothing to measure or pour.
*Compared to the minimum EPA-recommended chlorine level of 1.0 ppm for a stabilized swimming pool.
Product Details
| Product Detail | Information |
|---|---|
| Brand | FROG (King Technology, Inc.) |
| Product | Pool FROG Series 6100 replacement Mineral Reservoir (25K) |
| What's Included | 1 Mineral Reservoir |
| Active Ingredient (label) | Silver chloride 0.5%, other ingredients 99.5% |
| Mineral System | FROG minerals silver chloride and carbonate, used with at least 0.5 ppm chlorine |
| Net Weight (label) | 0.99 lb |
| EPA Registration | EPA Reg. No. 53735-11; EPA Est. No. 071209-AZ-001 |
| Reservoir Life | Up to 6 consecutive months or one pool season, whichever is shorter, counted from first wetting |
| Fits | Pool FROG Model 6100 above-ground cycler (01-01-6180) |
| Does Not Fit | Pool FROG Model 5400 or XL PRO (they use the 40K reservoir, 01-12-5462), Flippin' FROG, FROG Leap or hot tub systems |
| Pool Size | Up to 25,000 gallons (above-ground pools) |
| Free Chlorine Range | 0.5–1.0 ppm |
| Water Balance Before Install (label) | pH 7.2–7.8, total alkalinity 80–120 ppm, then shock |
| Chemical Compatibility (label) | Compatible with pool chemicals except biguanides |
| Container | Non-refillable; discard in the trash after use |
| Signal Word (reservoir label) | Caution; keep out of reach of children |
| Shipping Weight | 3 lb |
| Manufacturer Order Code | 01-12-6112 (Series 6100 Mineral Reservoir 25K) |
| Store SKU | 01-12-6112 |
| UPC | 722906061014 |
| Image Alt Text | Pool FROG 6100 Mineral Reservoir, blue and yellow replacement mineral cartridge for above-ground pools up to 25,000 gallons, order code 01-12-6112 |
How to Replace the Pool FROG 6100 Mineral Reservoir
- Shut off the pump: Turn the pump off and set the cycler's control dial to Setting 0 to reduce water flow into the unit.
- Open the cycler: Unscrew the cap by hand and step back for a moment so any chlorine fumes can clear.
- Lift out the Bac Pac: Set the pac aside if tablets remain. It goes back in after the swap or can be stored for winter.
- Discard the old reservoir: Remove the used reservoir and put it in the trash. It can't be refilled.
- Drop in the new one: Line up the slot on the side of the new reservoir with the fin inside the cycler and lower it until it sits firmly.
- Replace the pac and cap: Set the Bac Pac back into the reservoir's open center, then thread the cap on by hand without over-tightening.
- Restart and set a reminder: Return the dial to your setting, switch the pump on and mark the calendar for 6 months out.
6100 Reservoir Swap at a Glance
| Step | What to Do | Why |
|---|---|---|
| Power down | Pump off; control dial to Setting 0 | Slows water entering the open cycler |
| Open by hand | Unscrew the cycler cap and let any fumes clear | The 6100 cap comes off by hand |
| Pull the pac | Lift out the Bac Pac; keep it if tablets remain | A partly used pac can go back in |
| Swap | Trash the old reservoir; match the side slot of the new one to the fin in the cycler | It seats only one way |
| Close up | Pac back in the center, cap on hand-tight, dial back to your setting | Over-tightening can damage the cap |
| Note the date | Mark the calendar 6 months ahead | Spent media still rattles after it stops working |
Based on the Pool FROG Model 6100 manual and the Pool FROG Mineral Reservoir instructions.
Model 6100 Starting Dial Settings, 12-Hour Pump Run
| Pool Gallons (Diameter) | ½ hp | ¾ hp | 1 hp | 1½ hp |
|---|---|---|---|---|
| 7,000 (18') | 4.5 | 4.0 | 3.0 | 5.0^ |
| 9,000 (21') | 5.0 | 4.5 | 4.0 | 5.5^ |
| 12,000 (24') | 5.5 | 5.0 | 4.5 | 4.0 |
| 15,000 | 6.0 | 5.5 | 5.0 | 4.5 |
| 20,000 | NR | 6.0 | 5.5 | 5.0 |
| 25,000 | NR | 6.5 | 6.0 | 5.5 |
Excerpted from the Pool FROG Model 6100 manual. ^ means a bypass installation is recommended; NR means that pump size isn't recommended for that pool size. The manual also gives 8-hour and 24-hour columns. Treat these as starting points: test free chlorine daily for the first week and adjust to hold 0.5–1.0 ppm.
Water Balance Targets for Pool FROG Cyclers
| Test (in this order) | Target | Note |
|---|---|---|
| Total alkalinity | 80–120 ppm | Adjust first |
| pH | 7.2–7.8 | Adjust after alkalinity is in range |
| Calcium hardness | 200–400 ppm | Retest after pH |
| Stabilizer (cyanuric acid) | 20–80 ppm | Above 80, partially drain and refill |
| Total dissolved solids | Under 1,500 ppm | |
| Free chlorine | 0.5–1.0 ppm | The range the Bac Pac and minerals hold |
From the Pool FROG Model 5400 and 6100 manuals: add balancers one at a time with the pump running and wait 8–12 hours before retesting or adding the next.
Compatibility Notes
Before You Buy
- Fits the Pool FROG Model 6100 above-ground cycler, which FROG rates for pools up to 25,000 gallons.
- Does not fit the Pool FROG Model 5400 or XL PRO in-ground cyclers. They use the larger 40K reservoir. Check the box top and back label against your cycler.
- Pair it with a Pool FROG Bac Pac or another EPA-registered chlorine source that holds at least 0.5 ppm.
- The label says it works with pool chemicals except biguanides (PHMB systems).
- The Model 6100 manual says not to install the cycler off-line, and not in copper pipe when Bac Pacs are the chlorine source.
- Never put loose tablets, fast-dissolving chlorine, liquid bleach or calcium hypochlorite in the cycler.
Which 6100 Reservoir Option Fits My Season?
| Option | What's Inside | Best For |
|---|---|---|
| Pool FROG 6100 Mineral Reservoir (this listing) | 1 reservoir | You already have Bac Pacs |
| 6100 Reservoir + 3 Bac Pac | 1 reservoir, 3 Bac Pacs | Opening day plus the first several weeks of chlorine |
| 6100 Reservoir + 3 Bac Pac + BAM | 1 reservoir, 3 Bac Pacs, 1 FROG BAM | Opening with 90-day algae prevention |
| 6100 Reservoir + 6 Bac Pac | 1 reservoir, 6 Bac Pacs | Chlorine well into midsummer |
| FROG 5400 Mineral Reservoir | Different reservoir | In-ground Model 5400 and XL PRO only; won't fit the 6100 |
Every 6100 option uses the same Series 6100 reservoir, order code 01-12-6112, rated for above-ground pools up to 25,000 gallons.
Why Choose the Pool FROG 6100 Mineral Reservoir
It's FROG's own Series 6100 cartridge, made for the Model 6100 cycler on your above-ground pool and filled with the same mineral formula the system was designed around. For the chlorine side, add a Pool FROG Bac Pac or a Bac Pac 3 Pack, and check the 0.5–1.0 ppm range with FROG Test Strips. Own an in-ground Model 5400 or XL PRO? Choose the FROG 5400 Mineral Reservoir. Shop more FROG and King Technology water care, or browse pool mineral cartridges at HotTubPirate.com.
Ideal For
- Pool FROG Model 6100 above-ground owners
- Spring openings after a winter close
- Owners who already have Bac Pacs
- Pools up to 25,000 gallons
Frequently Asked Questions
Which Pool FROG cycler takes this reservoir?
The above-ground Model 6100. Before opening the box, look for "Series 6100 (01-12-6112)" on the back label so you know it's the right cartridge for your cycler.
How long does a Pool FROG 6100 Mineral Reservoir last?
Up to 6 consecutive months, or one pool season if that's shorter. Timing begins the first time water touches the minerals, not when you buy it.
Can I use this cartridge in a Pool FROG 5400 or XL PRO?
No. Those in-ground cyclers take the bigger 40K reservoir, and this 25K cartridge won't seat in them. Order the 5400 reservoir for those systems.
I have an older Pool FROG 5100 or 5200. Will this fit?
Possibly. An earlier FROG above-ground manual listed this 25K reservoir for Series 5100, 5200 and 6100 cyclers and Prevail 5770 and 5771 units. FROG's current product page names only the Model 6100, so call FROG at 800-222-0169 to confirm for an older unit.
Is this the Pool FROG Mineral Reservoir 25K?
It is. The 25K name comes from FROG's dealer catalog and refers to the 25,000-gallon rating. Order code 01-12-6112 is printed on the back label, and FROG's website lists the same part as the Mineral Reservoir 6100.
It still sounds full when I shake it. Do I really need a new one?
Yes. FROG explains that one mineral dissolves and the other doesn't fully, so you'll hear leftover media long after the active part is used up. Go by the 6-month date.
What does the reservoir contain?
Its label lists silver chloride 0.5% as the active ingredient and 99.5% other ingredients, under EPA Reg. No. 53735-11. FROG calls the blend FROG Sanitizing Minerals.
Does the pool still need chlorine?
Yes, at a low level. Hold free chlorine at 0.5–1.0 ppm with a Pool FROG Bac Pac, or use another EPA-registered chlorine source that keeps at least 0.5 ppm.
Can I use liquid chlorine or a chlorinator instead of Bac Pacs?
The label allows another chlorine source if you keep at least 0.5 ppm, adding it directly to the pool. Never pour bleach or loose chlorine into the cycler itself.
Will it work in a pool that used Baquacil?
Not until the biguanide is gone. The label says the reservoir works with pool chemicals except biguanides, so finish converting off PHMB first.
Can last summer's reservoir stay in for next season?
No. Once the minerals are wetted and later taken out of the water, FROG says they're no longer effective. Winter-climate owners put in a fresh one every spring.
What dial setting should a 6100 start on?
It depends on pool size, pump size and run time. For example, the manual's 12-hour chart suggests 5.0 for a 12,000-gallon pool with a ¾ hp pump. Test daily the first week and adjust.
Can the Model 6100 be plumbed off-line?
No. The Model 6100 manual says the cycler shouldn't be installed off-line. It goes in-line on the return after the filter and any heater.
How do I get rid of the old reservoir?
Put it in the household trash. It's a non-refillable container, so don't try to reopen or refill it even if some media remains.
Can I buy the reservoir with Bac Pacs?
Yes. We carry 6100 bundles with three or six Bac Pacs, and one with three Bac Pacs plus FROG BAM for algae prevention.
Safety Notes
Handle With Care
- The reservoir label carries the Caution signal word. Keep it out of reach of children.
- Don't put any other pac or bulk chemical in the reservoir. The label warns this can damage the reservoir, pool or equipment.
- If a reservoir breaks and loose minerals reach the pool, the label says to vacuum them out.
- After 6 months, discard the reservoir in the trash even if media still rattles inside. Don't reuse or refill it.
- Stay within the Model 6100's 50 psi and 104°F limits, turn off the pump before opening the cycler, and stand back from fumes when the cap is off.
- Read the reservoir label, your Model 6100 manual and each Safety Data Sheet before use.
Product Documents
Download the Mineral Reservoir instructions, the Model 6100 manual and the reservoir Safety Data Sheet.