FAQ

How Flush Frog works

What does Flush Frog actually do?

It clips onto the overflow pipe in a compatible gravity-toilet tank. The refill tube from the fill valve runs through the dispenser. After each flush, refill water passes through the dispenser and then down the overflow pipe toward the bowl.

Why does water go down the overflow pipe after a normal flush?

Because the toilet has to refill the bowl as well as the tank. The fill valve refills the tank directly, while the small refill tube sends a separate stream into the overflow pipe. That stream becomes bowl-refill water. See the full water path.

Fit

Will it fit my toilet?

It is designed for standard gravity toilets with an accessible overflow pipe and refill tube. Lift the lid and look for a vertical overflow pipe, a fill valve, and a small refill tube running between them. If those parts are accessible, you have the basic layout Flush Frog needs.

What toilets may not fit?

Pressure-assist toilets, some compact one-piece toilets, RV toilets, and unusual flush-valve systems may not have an accessible overflow pipe. Do not bend or force tank hardware. Use the 60-second fit check.

Tablets and safety

Does a tablet come with it?

No. Flush Frog is the dispenser. A compatible 3-inch BCDMH bromine tablet is purchased separately.

Where to buy compatible 3-inch Bromine (BCDMH) tablets

Standard 3-inch pool/spa bromine tablets (BCDMH) fit Flush Frog. Cleaning tablets are sold separately. Always confirm the product label identifies the tablet as bromine/BCDMH, follow the manufacturer’s handling instructions, and never mix toilet-cleaning chemicals.

Retailer links are provided for convenience; tablets are sold separately. Availability and formulations can change, so verify size and BCDMH chemistry before buying.

How long does a tablet last?

There is no honest single calendar answer for every toilet. Tablet life changes with flush frequency, refill flow, water conditions, tablet formulation, and how the dispenser is loaded. Replace the tablet when it is depleted and follow the tablet label.

Can I use other toilet cleaners at the same time?

Do not mix toilet-cleaning chemicals unless the product labels explicitly say the combination is safe. Never pour acids, bleach, or another cleaner into the tank or bowl simply to “boost” a chemical system. Different cleaners can react and produce hazardous fumes.

Is it septic-safe?

The dispenser itself is a piece of hardware, not a septic treatment. Whether a cleaning chemistry is appropriate for a septic system depends on the tablet label, the septic-system guidance you follow, and local requirements. Do not infer septic compatibility from the dispenser alone.

Cleaning and use

Will it remove an old toilet bowl ring?

Flush Frog is intended for ongoing maintenance, not instant removal of years of mineral scale. Remove an existing deposit with a cleaner appropriate for the stain, then use automatic maintenance to slow its return. Start with the toilet stain guide.

Why do toilet rings come back after scrubbing?

Because cleaning removes the deposit that exists today, but it does not change the minerals, waterline, or repeated wet-dry cycles that helped create it. Read the ring science.

How do I install it?

Load a compatible tablet, clip the dispenser to the overflow pipe, route the refill tube through it, and flush once to verify flow. See the step-by-step install guide.

Orders

What pack sizes are available?

1 Pack is $14.99. 4 Pack is $34.99, or $8.75 per dispenser, with free US shipping.

What if it does not fit?

The 30-day guarantee includes no-fit cases. Use the contact form with your order number.