Bleach-free, made in Hawaii,
Clean Your Catchment Tank Without Bleach
One scoop per 1,000 gallons cleans the buildup off your tank walls. No bleach, no scrubbing, and you never climb inside.
- Bleach-Free
- Made In Hawaii
- Free Shipping
- 100% Satisfaction Guarantee
Three Myths About Your Water Tank
Tap any card to see what is actually going on inside your tank
Scoop, Wait, Drain, Refill
Four steps, and the only tool you need is the scoop in the pouch
Scoop It In
One scoop per 1,000 gallons of tank capacity, straight in through the hatch. The tank stays full.
Let It Work
The HOCL oxidation loosens the buildup off the tank surfaces while you get on with your day.
Drain The Tank
Empty the tank out. The loosened residue and the product both leave with the water.
Refill With Fresh Water
Refill and you are done. No rinse cycle, no second visit, nothing left behind in the tank.
See What Comes Off The Walls
Real customer footage, no staging and no second tank. Drag the handle to compare.
Before
After
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From $19.97, free shipping to all 50 states
Compare The Ways People Clean Tanks Today
Swipe to compare the four common approaches
Cistern & Catchment Bomb
- Cleans the buildup off surfaces
- Bleach-free
- Compatible with common liners
- No scrubbing, no climbing in
- Minutes of hands-on time
Bleach
- Mostly covers the smell
- Corrosive to skin, eyes and lungs
- Releases chlorine gas, especially in an enclosed tank
- Dangerous if mixed with ammonia or acidic cleaners
- Degrades tank liners, seals and fittings over time
- Scrubbing usually still needed
- Cheap up front
Draining And Scrubbing By Hand
- Removes what you can reach
- You climb inside the tank
- Hours of physical work
- Easy to miss whole sections
- A full day of your time
Hiring A Tank Cleaning Service
- Thorough, done by professionals
- No work for you
- The most expensive option
- You wait for an appointment
- Tank is out of use meanwhile
Comparison reflects the product used as directed on the pouch against common tank cleaning approaches. Bleach behaviour varies by product and concentration, so always check your own liner manufacturer's guidance.
What People Say After They Have Used It
Exactly what I needed
I was looking for something simple for tank cleaning, and this was a good fit.
Good option for a catchment tank
We’ve been looking for an easier way to keep up with our tank cleaning. The Cistern & Catchment Bomb was easy to add and didn’t require a complicated process. The tank seemed fresher after cleaning.
No complaints
Easy process and no issues using it. Would purchase again.
Great for our tank
Worked well for our regular catchment tank cleaning. Happy with the purchase.
Convenient product
Much easier than dealing with a complicated cleaning process. Very convenient.
Happy with the results
Used it as directed and was pleased with the overall experience.
Pick The Size That Fits Your Tank
Free shipping on both, to all 50 states, with no minimum purchase
100 Grams
Cleans a tank up to 5,000 gallons
For a smaller tank, or a first try
500 Grams
Cleans a tank up to 25,000 gallons
Most Big Island tanks run 10,000 to 30,000 gallons
The Chemistry Behind The Clean
HOCL is not premixed and shipped to you. It is made in your tank, the moment the powder hits the water.
Your tank makes it
The powder releases the cleaning chemistry the moment it dissolves. Nothing sits premixed on a shelf losing strength.
Oxidation does the scrubbing
HOCL breaks apart the films and residue that build up on tank walls, and neutralizes odors at their source instead of covering them up.
Keeps fresh inside the Ziploc foil packet
The powder ships dry and stays stable on the shelf, so the pouch you open next season is as strong as the day it arrived.
- Proteins
- Fatty acids
- Amines
- Sulfur compounds
- Odor causing soil
- No bleach
- No sharp chlorine odor
- No jug to store
How Much Does Your Tank Need
Most Big Island catchment tanks run between 10,000 and 30,000 gallons
Not sure? Look for the capacity stamped on the tank wall, or estimate from the diameter and height.
Also Stocked on The Big Island at Your Nearest Ace Hardware And Authorized Dealers
Questions Catchment Owners Ask
No. It is formulated to be compatible with EPDM, PVC, polyethylene, polypropylene and fiberglass, which covers the liners on almost every catchment tank here. If yours uses something unusual, check with your liner manufacturer first.
One 20 gram scoop per 1,000 gallons of tank capacity. The chart printed on the back of the pouch runs from 1 scoop for a 1,000 gallon tank up to 25 scoops for a 25,000 gallon tank. The calculator above works it out for you.
No, and you do not climb inside either. You scoop it into the full tank, let it work, then drain and refill.
No, it is bleach-free. It is a sodium-based powder that generates HOCL when it dissolves in water, and the HOCL is what breaks down the residue on the tank walls.
No. The last two steps are to drain the tank and refill it with fresh water, so the loosened residue and the product both leave with the water you drain out.
Order it online here with free shipping to all 50 states, or pick it up at your nearest Ace Hardware and authorized dealers across the Big Island.
100% Satisfaction Guarantee
Love it or return it within 30 days.
Return it in its original packaging and email info@solutionshocl.com to start a return.
This is a cleaning product for tank walls and surfaces, for use in non-potable water systems.