Drop. Clean. Done.
Just add it and let it work. Enjoy a fresh, clean cistern tank with zero scrubbing. Try it now and save.
Cistern Bomb, Natural Cistern Tank Cleaner
Keep your cistern tank clean and odor-free with the Cistern Bomb, a bleach-free solution that works through natural oxidation. Whether you are doing monthly maintenance or a full deep clean, it helps reduce slime, odors, and buildup on tank surfaces without harsh chemicals.
Order Cistern Bomb now and keep your cistern tank clean, naturally, no bleach needed.

Deep Cleaning Removes Buildup, Odors, and Residue From Water Tanks
If you rely on water tanks for household use, gardening, or rainwater harvesting, keeping the tank clean matters. The SolutionsHOCL Cistern Bomb Cleaner is designed to help you do exactly that, with eco-friendly ingredients that deep-clean tank surfaces without harsh chemicals.
Using the natural cleaning power of Hypochlorous Acid (HOCL), this bomb cleaner breaks down contaminant buildup and neutralizes odors on your cistern walls and surfaces.
A Smarter Sanitation Solution
While bleach leaves behind harsh residues and foul odors, the SolutionsHOCL Cistern Bomb Cleaner works differently, breaking down buildup through gentle oxidation without corrosive chemicals.
Why Cistern Bomb Works: Simple, Powerful Cleaning
Before and After

Say Goodbye to Smelly, Slimy Tanks
The SolutionsHOCL Cistern Bomb Cleaner is your go-to solution for clean, odor-free cistern tanks. Whether you clean seasonally or year-round, our HOCL-powered bomb helps keep your tank walls and surfaces clean.
How to Use
Dose: 1 scoop (20 grams) per 1,000 gallons of tank capacity. A 100 gram pack cleans up to 5,000 gallons.
Steps:
- With water in the tank, fill or partially fill to cover the soiled walls and surfaces.
- Add the Cistern Bomb at 1 scoop (20 grams) per 1,000 gallons.
- Let the solution contact the tank walls and surfaces for 30 to 60 minutes. The oxidizing action loosens film, residue, and deposits with no scrubbing.
- Drain the tank completely. The loosened contaminants drain out with the cleaning water.
- Rinse with fresh water, then refill your tank for normal use.
The People First Choice for Cleaning Cistern Tanks
Everything You Need to Know About Cistern Cleaning
General Questions
What is the Cistern Bomb Cleaner?
What is the Cistern Bomb Cleaner?
It is an eco-friendly cleaner formulated to deep-clean cistern tanks and surfaces using Hypochlorous Acid (HOCL). It helps break down buildup, stains, and odors on tank walls and surfaces.
Is this cleaner compatible with all types of water tanks?
Is this cleaner compatible with all types of water tanks?
Yes. It is compatible with plastic, concrete, fiberglass, and metal cisterns. Follow the usage instructions for best results
I store water in my cistern. What should I know?
I store water in my cistern. What should I know?
The Cistern Bomb is designed for non-potable systems. If your tank is later used for potable water, drain and flush thoroughly after cleaning and follow your local water-safety guidance.
Does it work in cold water?
Does it work in cold water?
Yes. It dissolves completely and starts working immediately, even in very cold conditions, no heating required.
How much should I use?
How much should I use?
Use 1 scoop (20 grams) per 1,000 gallons of tank capacity. A 100 gram pack cleans up to 5,000 gallons and includes a measuring scoop.
How long does it take to see results?
How long does it take to see results?
You will notice a cleaner tank and reduced odors within hours. Full results, including film and grime removal, typically appear within a few days.
What makes it a top choice for cleaning water tanks?
What makes it a top choice for cleaning water tanks?
It is HOCL-powered, cleaning algae odor and stains effectively without harsh chemicals. It is fast-acting and ideal for year-round use, even in winter.
Effectiveness & Ingredients
What makes HOCL different from bleach?
What makes HOCL different from bleach?
HOCL cleans through gentle oxidation at neutral pH, without the harsh fumes, corrosive residue, or strong smell of bleach. It is also gentler on tank materials.
Does it help with buildup and stains?
Does it help with buildup and stains?
Yes. It helps break down organic buildup and residue commonly found on tank surfaces.
Are the ingredients eco-friendly?
Are the ingredients eco-friendly?
Yes. The cleaner contains eco-conscious ingredients including HOCL, sodium bicarbonate, and a sodium-based ingredient, chosen for sustainability.
Usage & Application
How do I use the Cistern Bomb Cleaner?
How do I use the Cistern Bomb Cleaner?
Add the amount for your tank size (see How to Use), let it contact the walls and surfaces, then drain and refill with fresh water. Full directions are on the packaging.
How often should I use this cleaner?
How often should I use this cleaner?
Deep clean every 2 to 3 months for best performance. In humid or tropical climates, monthly may be ideal.
Can I use it for my RV or boat water tank?
Can I use it for my RV or boat water tank?
For best results, use our RV Tank Cleaner for RVs and our Marine & Boat Tank Cleaner for boats. The Cistern Tank Cleaner is designed for larger storage systems like cisterns and catchment tanks.
Safety & Storage
How should I handle it around pets and kids?
How should I handle it around pets and kids?
Keep undissolved product out of reach of children and pets. Avoid contact with eyes and skin, and follow the label.
How should I store the product?
How should I store the product?
Store in a cool, dry place away from direct sunlight. The product is shelf-stable and long-lasting.
Does it leave any strong smells?
Does it leave any strong smells?
No. Unlike bleach-based products, it leaves no lingering odors, just a clean, fresh-smelling tank.
