Powerful Earth-Friendly Deep Cleaner.   Bleach-free. Made in Hawaii. Free Shipping All 50 States.

Autoship - Catchment bomb™ - Rainwater Tanks Cleaner - 500g

Packaging can vary


Regular price $49.97
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Save on Auto-Delivery: Keep Your Tank Fresh Year-Round, Keeping your catchment or rainwater tank clean is made easy. The Cistern & Catchment Bomb™ 500g makes it simple to clean tank surfaces and keep larger rainwater tanks fresh with a powerful, earth-friendly drop-in cleaner.

  • Cleans up to 25,000 gallons of tank capacity, about $0.002 per gallon
  • Add one scoop per 1,000 gallons of tank capacity.
  • Wait for one hour or more depending on tank condition.
  • Helps remove slimy film, green staining, and contaminant buildup and neutralize odors at their source through Powerful Deep Cleaning Oxidation Technology™.
  • Helps keep tank surfaces cleaner and fresher over time.
  • Earth-friendly, bleach-free
  • Easy drop-in formula, works while you wait, no manual scrubbing.
  • For aggressive deep cleaning for dirty tanks: Drain. Refill.
  • HOCL acts as an oxidizer to break down residue on tank surfaces and neutralize odors and stains at the source: proteins, fatty acids, amines, sulfur compounds, and more.
  • Free Shipping across all 50 US States.

This is a Professional cleaning product for tank walls and surfaces, for use in non-potable water systems.

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Enjoy fast and free shipping to all 50 states, no minimum purchase required.

Description

Maintain a clean and odor-free rainwater catchment system effortlessly with the 500g Catchment Bomb. Specially formulated to minimize buildup, slime, and unpleasant odors inside catchment tanks, this product helps keep tank surfaces cleaner and fresher for household and garden use. Easy to use, it offers a convenient solution for tank maintenance without harsh chemicals or hazardous substances.

Ideal for keeping stored-water tanks clean, the Catchment Bomb helps promote a cleaner tank interior, reducing odors and staining. Regular use helps keep your tank fresher for longer.

The Catchment Bomb™ is available in 500-gram and 100-gram packs. Choose the size that fits your tank and follow the directions on the package.

HOCL-based Water Catchment System Cleaning

Hypochlorous Acid (HOCL) breaks down contaminant residue through powerful deep cleaning oxidation technology™. It neutralizes debris such as grime and bird droppings while maintaining the integrity of your tank surfaces. 

Note: This product is designed for cleaning and maintaining water tanks and is not intended for direct contact with drinking water. Always follow the directions on the package. 

Simple Steps for Maximum Impact

One scoop for each 1,000 gallons of tank capacity. Wait for one hour or more depending on tank condition

Easy Application for Busy Lives

Cleaning your water tank has never been simpler. Follow the directions on the package, wait 1 hour or more depending on buildup, and then remove any floating contaminant residue.

For Roofs and Gutters

Using the Catchment Bomb is effortless. Dilute the cleaner as directed on the package and apply it to roofs and gutters to remove contaminant buildup. Use a divertor so the contaminants do not go into your water tank.

Optimized Deep Cleaning

Great for dirty tanks: drain and refill. You now have a tank ready for fresh water.

Key Benefits

  • Oxidation Technology: HOCL operates through powerful deep cleaning oxidation technology™, breaking down contaminant residue to help keep rainwater catchment tank surfaces cleaner longer
  • Earth-Friendly Qualities: HOCL breaks down contaminant residue, odors on tank walls and surfaces.
  • Versatile Application: Works on roofs, gutters, and connector pipes as well as tanks. Follow the directions on the package.

Maintenance Efficiency: Regular application of HOCL Catchment Bomb helps keep surfaces cleaner, reducing pipe blockages.

Environmental Consideration: Used as directed, the HOCL Catchment Bomb supports environmental responsibility and is earth-friendly.

SolutionsHOCL™ products are formulated with environmentally friendly ingredients and come with a 100% Satisfaction Guarantee!

Order Now: Keep your rainwater catchment tank clean with SolutionsHOCL™ Catchment Bomb.

Comes in a Resealable Foil Packet with a Zip Lock Top + Free Scooper included

This is a Professional cleaning product for tank walls and surfaces, for use in non-potable water systems.

Safety and Usage Information

Warning

  • Keep out of reach of children.
  • Avoid contact with eyes and skin.
  • Not for direct consumption or application on food.
  • Store in a cool, dry place away from direct sunlight.

First Aid

  • If in eyes: Rinse cautiously with water for several minutes. Seek medical attention if irritation persists.
  • If on skin: Wash with soap and water. If irritation occurs, discontinue use and consult a physician.
  • If swallowed: Do not induce vomiting. Rinse mouth and seek medical advice immediately.
  • Package Size

    500 grams

  • Form
    Fine Powder + Granules
  • compatibility

    Will not harm common tank liner materials including EPDM, PVC, polyethylene, polypropylene, and fiberglass

  • Dosage

    20 grams per 1,000 gallons of water tank capacity.

  • Shelf Life

    1–2 years

  • Made In
    Formulated & Blended in Hawaii, USA

Catchment Bomb™: Powerful, Easy Rainwater Tank Cleaner

Keep your rainwater tanks clean, fresh, and odor-free with Catchment Bomb™. This earth-friendly, easy-to-use powder activates in water to break down buildup and slimy film without harsh chemicals. Perfect for sustainable tank maintenance.

Catchment Bomb bleach-free rainwater tank cleaner

4 Simple Steps to a Cleaner Tank

  • A dark green circular icon containing the white number 1.

    FILL THE TANK

    Make sure the tank is full enough to cover all areas that need cleaning.

  • A dark green circular icon containing the white number 2.

    SCOOP IT IN

    Add one scoop (about 20 grams) per 1,000 gallons of tank capacity.

  • A dark green circular graphic containing a large white number 3.

    LET IT WORK

    Wait 1 hour or more, depending on the condition of the tank. Done.

  • For Deep Cleaning

    To Heavy-Duty Cleaning of tank walls and fitting: Drain. Refill. 

cistern & catchment bomb rinse water storage tanks

For Roofs and Gutters

Using the Catchment Bomb is effortless. Dilute the cleaner as directed on the package and apply it to roofs and gutters to remove contaminant buildup. Use a divertor so the contaminants do not go into your water tank.

Optimized Deep Cleaning

Most of the time, scoop it in and let it work, that is all a well-kept tank needs. But if your tank has been standing unused, or you are dealing with heavy buildup after a long season, finish the job properly: once the tank is clear, drain and refill with fresh water. Ready to use.

catchment bomb work perfect for water catchment system

Works perfect on Catchment Tanks

Clean your catchment rainwater tanks with HOCL. We formulate our SolutionsHOCL™ Crystals with HOCL.

Advanced Oxidation for Deep Cleaning


The Catchment Bomb™ uses the oxidative strength of Hypochlorous Acid (HOCl) to break down grime, contaminant buildup, and slimy film on your rainwater tank surfaces. When added to water, the active ingredients quickly dissolve and begin breaking down contaminant residue. The result? Cleaner tank surfaces and reduced odors for all your non-potable needs, with no harsh chemicals or toxic fumes.

Why Tank Owners Choose Catchment Bomb™

  • residue free formula for hypochlorous acid

    Fast-Acting Formula

    Starts working immediately to break down grime and slimy film buildup.

  • solutions hocl (hypochlorous acid) cleaners without harsh chemicals

    No Harsh Chemicals

    Made with eco-conscious ingredients that are gentle on your tank.

  • solutions hocl (hypochlorous acid) long lasting cleaners

    Long-Lasting Freshness

    Keeps tanks clean and odor-free for weeks.

  •  Water Storage Systems

    Septic Compatible

    Compatible with septic systems and gray water tanks.

  • Fast Easy Application

    Easy to Use

    Follow the directions on the package, no scrubbing required.

  • tuested by users solutions hocl (hypochlorous acid) cleaners

    Loved by Off-Grid Users

    Popular with outdoor adventurers and sustainable living enthusiasts

easy to follow solutionshocl cleaners

Easy-to-Follow Application

Dilute the HOCL Catchment Bomb to an appropriate concentration and apply it to areas such as roofs and gutters to remove contaminant buildup and debris before they enter the catchment system.

It neutralizes odors and stains at the source and lifts contaminant buildup from your catchment tank surfaces.

Maintenance Efficiency: Regular application of HOCL Catchment Bomb
helps keep surfaces cleaner, reducing pipe blockages.

Environmental Consideration: Used as directed, the HOCL Catchment Bomb supports environmental responsibility and is biodegradable.

keep your catchment Water storage tank clean with catchment bomb

Keep Your Tank Clean – The Smart, Sustainable Way!

Whether you're a homesteader, off-grid enthusiast, or just serious about a clean tank, the Catchment Bomb™ is your go-to for keeping rainwater tanks clean, with zero hassle. Add it to your maintenance routine today.

Frequently Asked Questions

Do I need to rinse the tank after using it?

Just follow the directions on the package and let it work. For heavy-duty deep cleaning, especially if there's heavy buildup, let the solution sit for several hours, then drain and refill with fresh water.

How often should I use Catchment Bomb™?

Use Catchment Bomb™:

  • Every 2–4 weeks for maintenance
  • After long storage periods
  • Whenever you notice odors or slime

Frequent users like RVers or off-grid homesteaders may use it more regularly to help keep tanks cleaner and fresher year-round.

Will this affect my plumbing and septic system?

No. Catchment Bomb™ is gentle on pipes, seals, and septic systems will not damage components or throw off the balance of your tank and plumbing.

Can I use this in rainwater catchment tanks?

Absolutely. Catchment Bomb™ was originally designed for rainwater harvesting and off-grid systems. It helps keep your rain barrels, storage tanks, and pipes free from green staining, buildup, and bad odors without affecting your filtration systems or leaving harmful residues.

Is Catchment Bomb™ friendly?

Yes! Our formula is made from environmentally friendly, biodegradable ingredients that won’t harm ecosystems when discharged. It's a great choice for sustainable homes, eco-conscious RVers, and anyone looking to reduce chemical use.

What size tank does one Catchment Bomb™ treat?

One scoop (about 20 grams) treats 1,000 gallons. The 100 g pack contains 5 scoops and treats up to 5,000 gallons; the 500 g pack contains 25 scoops and treats up to 25,000 gallons. Choose the size that fits your tank, and you can divide the product for smaller tanks as needed.

Does it remove existing buildup and odors?

Yes, Catchment Bomb™ is highly effective at breaking down existing slimy film, odors, and contminant residue. It's a deep-cleaning solution designed to refresh neglected systems as well as keep clean ones in top shape.

How should I store the Catchment Bomb™?

Store your Catchment Bomb™ in a cool, dry place away from direct sunlight or moisture. The packaging is resealable, keeping the powder fresh and active for months. Keep out of reach of children and pets.

Is this product made in the USA?

Yes! Catchment Bomb™ is formulated and packaged in the USA with high-quality, carefully sourced ingredients. You're supporting a small business committed to providing reliable, earth-friendly solutions for modern water systems.