RV & Marine Toilet Bomb, Fizzing Toilet Bowl Cleaner and Mineral Buildup Remover - 100G

Keep your RV or boat toilet bowl clean and fresh without hauling bleach on board. RV & Boat Toilet Bomb is an effervescent powder you scoop straight into the bowl. It fizzes on contact, cleaning the bowl and lifting hard-water and mineral buildup, while a Fresh Lemon scent freshens as it works.

Hard water and long storage leave their mark on RV and marine toilets. Calcium, lime, and mineral scale collect in the bowl and get harder to shift the longer they sit. Saltwater-flushed boat heads scale up faster still, leaving calcium and struvite deposits in the bowl and channels. This formula fizzes to break that buildup down, so a light pass with a soft nylon brush handles whatever is left. Most of the time you will not need to scrub at all.

What it does

• Fizzes on contact to clean the bowl, no scrubbing routine required
• Lifts hard-water and mineral buildup, including calcium, lime, and scale
• Freshens with a Fresh Lemon scent as it works
• Non-abrasive on porcelain and plastic bowls
• Bleach-free and chlorine-free, with a deep-cleaning surfactant that lifts residue and rinses clean
• Scoop included for clean, no-mess dosing
• Concentrated powder in a resealable pouch with desiccant, so it stores small and travels well

Skipping the harsh chemistry matters twice over on the road and on the water. In a small RV bathroom or boat head there are no harsh fumes to sit in. And because there is no bleach or chlorine going down the line, it works alongside your holding-tank treatment rather than interfering with it. It also stays gentle on the seals, gaskets, and plumbing that RV and marine toilets depend on.

Why RVers and boaters choose it

• Cleans and lifts buildup: Fizzes to clean the bowl and break down calcium, lime, and mineral scale that collect in RV and marine toilets, especially in hard-water areas and after storage.
• Made without the harsh stuff: Bleach-free and chlorine-free, with no hydrochloric acid. No harsh fumes in a small RV bathroom or boat head.
• Gentle where it counts: Non-abrasive on porcelain and plastic bowls, so it stays easy on the rubber ball and blade seals in RV toilets and the joker and duckbill valves in marine heads.
• Works with your tank routine: No bleach or chlorine means it works alongside your holding-tank treatment instead of fighting it.

How to use

RV toilets

1. Add one level scoop, about 33 g, to the bowl.
2. Let it fizz and work 10 to 15 minutes.
3. Brush lightly with a soft nylon brush if needed.
4. Flush. For heavy buildup, use a second scoop and let it work 15 minutes.

Marine heads

1. Pump a small amount of water into the bowl.
2. Add one level scoop, about 33 g.
3. Let it fizz and work 10 to 15 minutes.
4. Brush the bowl surface.
5. Pump through to clear the bowl and channels.

Use weekly or after each trip to help keep mineral buildup from forming. One level scoop is one treatment, and a scoop is included with both sizes.

Why chlorine-free matters in an RV or boat

RV toilets seal with a rubber ball or blade at the bottom of the bowl, and marine heads rely on rubber joker or duckbill valves. Chlorine bleach and hydrochloric-acid bowl cleaners are known to dry, swell, or crack those rubber parts over time, which is how bowls start leaking and letting odors up from the tank. Chlorine also works against the enzyme-based and other biological treatments many owners run in their holding tanks. Because this formula is chlorine-free and bleach-free, it cleans the bowl without those trade-offs and works alongside your existing tank treatment.

Choose your size

• 100 g Trial / Travel Size. About 3 treatments. Good for trying it out or keeping a small pouch on board for a trip.
• 500 g Value Pack. About 15 treatments. Lower cost per treatment and fewer reorders, built for regular care and season-long use.

Most customers start with the trial size, then move up to the Value Pack. Both are bleach-free, chlorine-free, phosphate-free, made with plant-based surfactants, and made in USA.