Eco-Friendly HOCL Tank Cleaner. Bleach-Free. Made in Hawaii.

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

Breaks Down Contaminant Buildup and Neutralizes Odors. No Harsh Chemicals.

Cistern & Catchment Bomb™: Cistern & Rain Water Tank Cleaner - 100 Grams


Regular price $19.97
Free Shipping in All US States.
Size

Keeping your cistern, catchment or rainwater tank clean is made easy. The Cistern & Catchment Bomb™ makes it simple to clean tank surfaces and keep your tank fresh with an easy drop-in cleaner.
Keeps cistern, catchment & rainwater tanks fresh and clean

  • Helps remove slimy film and algae stains and neutralize odors through Natural Oxidation Technology
  • 5,000 gallons per package
  • Helps keep tank surfaces cleaner and fresher naturally
  • Easy drop-in cleaner, no scrubbing required
  • Eco-friendly, biodegradable formula that will not harm common tank materials
  • Free Shipping across all 50 US States
  • HOCL acts as an oxidizer to break down organic residue on tank surfaces and neutralize odors and stains at the source: proteins, fatty acids, amines, sulfur compounds, and more.

Learn More

Watch Videos


Free Shipping Across the USA!
Enjoy fast and free shipping to all 50 states, no minimum purchase required.

Product Description

Keep your cistern and catchment tanks clean with the Cistern & Catchment Bomb Water Tank Cleaner. Harnessing the power of Hypochlorous Acid (HOCL), our cleaning formula breaks down organic residue and buildup on tank surfaces and neutralizes odors and stains at the source, keeping your tank fresh and odor-free.

Millions of Americans rely on private water systems like rainwater tanks. These systems provide independence but require regular maintenance. The SolutionsHOCL™ Cistern & Catchment Bomb is an easy-to-use, eco-friendly, bleach-free cleaner that removes buildup, stains and odors from tank surfaces through natural oxidation. Keep your tank cleaner, naturally.

Innovative Cleaning Science

At the heart of our formula is HOCL. This science makes our cleaner effective and eco-friendly. By breaking down organic residue and reducing odors, the Cistern & Catchment Bomb helps keep your tank in top condition, ready for use whenever you need it.

Easy to Use

available in 100-gram and 500-gram packages. Choose the size that fits your tank and follow the directions on the package.

Key Benefits That Make a Difference

  • Natural Oxidation: HOCL works through oxidation to break down organic matter, keeping tank surfaces cleaner longer and your tanks functional.
  • Eco-Friendly Solution:Our biodegradable formula leaves minimal environmental impact.
  • Versatile Application: Works on tanks, roofs, and gutters. Follow the directions on the package.
Simple Steps for Maximum Impact

Using the Cistern & Catchment Bomb is effortless. Dilute the cleaner as directed on the package and apply it to roofs and gutters to remove organic debris. You'll neutralize odors and stains at the source and lift organic buildup, keeping tank surfaces clean.

Easy Application for Busy Lives

Cleaning your water tank has never been simpler. Follow the directions on the package, wait a few hours, and then remove any floating organic matter. This straightforward process helps keep your tank clean.

Experience the Power of HOCL

Regular use of the Cistern & Catchment Bomb™ helps remove organic buildup and keeps tank surfaces cleaner longer, helping reduce blockages. Each package comes in a resealable foil packet with a zip lock top and a free scooper for your convenience.

Elevate the cleanliness of your water storage tanks with the Cistern & Catchment Bomb™ Water Tank Cleaner. Order now and change the way you maintain your catchment and cistern tanks. Enjoy peace of mind knowing that your tank is clean and ready for use!

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

    100 grams
    500 grams

  • Form
    Fine Powder + Granules
  • Ingredients
    Sodium dichloroisocyanurate (NaDCC). Releases HOCL when added to water.
  • Compatibility

    Will not harm common tank liner materials including EPDM, PVC, polyethylene, polypropylene, and fiberglass. / Great for gutters and roofs

  • Dosage

    20 grams per 1,000 gallons of water.

  • Shelf Life

    1–2 years

  • Made In
    USA

Cistern & Catchment Cleaner: Keep Your Tank Fresh and Clean

Effectively clean and maintain your cistern and catchment systems with our easy-to-use cleaner. Designed to remove buildup and neutralize odors at the source, it helps keep tank surfaces clean while protecting your storage tanks for long-lasting performance.

solutions hocl is superior to bleach
Woman pouring a product from a bag into a large metal tank with 'ECO Friendly Solutions HOCL'

How Removing Proteins, Fatty Acids & Odors Keeps Your Tank Fresh

Compounds Neutralized:

  • Proteins (from leaf litter, insects, bird droppings)
  • Fatty acids (from environmental runoff)
  • Amines (from decaying organic matter)
  • Sulfur compounds (from decomposing natural material)

What Happens If Not Neutralized:
These compounds create slime, slimy film, and unpleasant odors, leading to rapid tank fouling.

Product Benefits:
By neutralizing and breaking down these organics, Cistern & Catchment Bomb™:

  • Reduces odor and slimy buildup in tanks and pipes
  • Prolongs intervals between deep cleaning
  • Helps keep the tank interior fresher smelling
cistern & catchment bomb eco-friendly for rainwater tanks

Eco-Friendly Water Tank Cleaner for Cisterns & Rainwater Catchment Systems

The SolutionsHOCL™ Cistern & Catchment Bomb™ is a powerful, eco-conscious cleaner for your water storage tanks. Powered by Hypochlorous Acid (HOCL), it breaks down organic residue and buildup on tank surfaces, helping your cisterns and catchment tanks stay fresh and odor-free.

Works perfect on Your Cistern & Catchment Tanks


Clean your catchment and cistern tank with HOCL. We formulate our SolutionsHOCL™ Crystals with HOCL. Read more on our  Scientific Studies Page

Why Tank Cleaners Love It

  • no scrubing required for cleaning water storage tanks

    No Scrubbing Needed

    The formula does the heavy lifting. Simply add, wait, and rinse.

  • solutions hocl (hypochlorous acid) long lasting cleaners

    Long-Lasting Effects

    Helps keep tank surfaces cleaner longer and reduces the frequency of deep cleaning.

  •  Water Storage Systems

    Tank Compatible

    Compatible with most cistern materials, including plastic, concrete, and metal tanks.

  • solutions hocl ph friendly cleaners

    Neutral pH

    Balanced formula that is gentle on tank surfaces and fittings.

  • solutions hocl (hypochlorous acid) cleaners travel friendly

    Compact & Portable

    Easy to store and use for regular maintenance or emergency cleaning.

cistern & catchment bomb best cleaning formula clean water collection system

SolutionsHOCL™ Cleaning Formulas

Our cleaning formulas feature Hypochlorous Acid (HOCL) as a key component, breaking down organic residue and neutralizing odors and stains at the source through oxidation. Visit our Scientific Studies page.

Our SolutionsHOCL™ products are formulated with environmentally friendly ingredients and come with a 100% Satisfaction Guarantee! Please take the time to review our full line of Home Healthy™ Cleaning Products.

Videos

Video Thumbnail
Video Thumbnail
Video Thumbnail
Video Thumbnail
Video Thumbnail
Video Thumbnail
×
start cleaning water storage tanks with cistern & Catchment bomb

Your Cleaner Tank Starts Here

Choose a smarter, simpler way to maintain your cistern and catchment system. Made for homeowners and off-grid users alike, our cleaner is your go-to for a fresher, odor-free tank, without harsh chemicals or complicated steps.

Frequently Asked Questions

What is HOCL and How Does It Function as a Water Tank Cleaner?

HOCL stands for hypochlorous acid. It is an effective and powerful cleaner used to keep water tanks clean. HOCL is a naturally occurring compound that helps break down organic residue and buildup on tank surfaces, making it very effective for cleaning.

What exactly is the Cistern & Catchment Bomb?

The Cistern & Catchment Bomb is a powerful cleaning solution designed to maintain and refresh your rainwater catchment or cistern system. It breaks down organic buildup, neutralizes odors, and helps keep your tank cleaner and fresher, without harsh chemicals or scents.

How often should I use the Cistern & Catchment Bomb?

For best results, use the Bomb once every 1-2 months, or after heavy rainfall when sediment and organic debris are likely to accumulate. Regular use helps maintain ongoing freshness in your system.

Will it damage my tank or plumbing system?

Not at all. The formula is gentle on your cistern or tank material, pipes, and seals. It will not harm common tank materials including plastic, metal, and concrete. No corrosion, no residue, just a cleaner tank interior.

Do I need to scrub or rinse my tank after use?

No scrubbing needed. Follow the directions on the package and the formula will do the hard work for you. For deep cleaning, we recommend a full flush and refill.

Is it safe for the environment?

Yes! Our formula is biodegradable, bleach-free, and environmentally responsible.

Will this help with odors from my tank?

Yes! One of the main benefits of the Cistern & Catchment Bomb is odor control. It helps neutralize musty smells, algae-related odors, and other unpleasant scents at the source, caused by organic buildup.

Does this product expire?

The Bomb has a shelf life of up to 2 years when stored in a cool, dry place. We recommend keeping it sealed and away from direct sunlight to preserve maximum effectiveness.

How does SolutionsHOCL™ clean up your Cistern or Catchment Tank?

Simply follow the directions on the package, wait a few hours, and then scoop out any floating organic matter. This process helps maintain the cleanliness of your water tank. Experience the power of HOCL Cistern & Catchment Water Tank Cleaner and keep your tank clean.