HOCL is an approved ingredient in USDA Certified Organic production.

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

HOCL is used in food processing facilities regulated by the USDA.

hocl best rv and boat tank treatment cleaners

SolutionsHOCL™ Marine and Boat Water Tank Cleaners

Saltwater conditions, dock-side downtime, and weeks between trips can leave boat freshwater tanks tasting flat and smelling off. Our HOCL-based marine and boat tank cleaners break down organic buildup and odors so your freshwater tanks stay fresh between trips.

Made for fiberglass, stainless steel, and polyethylene marine tanks, our formulas are eco-friendly, free from harsh bleach residue, and gentle on plumbing and seals. Available in 100g and 400g sizes for everyday upkeep or seasonal deep cleans.

Browse marine and boat tank cleaners below. Free US shipping on every order.

What are the Top 8 issues with your RV fresh and graywater tank

how our RV Tank Cleaner and Descaler will fix them
  • Contamination and slime in fresh tank

    • “Helps remove organic residue and tank slime from interior surfaces and lines for a cleaner system.”
    • “Supports routine tank hygiene as part of normal flush and maintenance practices.”
  • Odor and ‘stale’ water

    • “Deodorizes tank and plumbing surfaces to reduce unpleasant tank‑related smells.”
    • “Rinses clean and is formulated without heavy fragrances, helping maintain a fresh, neutral system after flushing.”
  • Low pressure / poor flow

    • “Helps dissolve mineral scale and deposits that can build up in lines and fittings.”
    • “Regular use as directed helps keep plumbing passages cleaner and more open for consistent performance.”
  • Leaks, overfilling, cross‑flow (indirect)

    • “Formulated to be compatible with common RV tank and plumbing materials when used as directed.”
    • “Designed for periodic cleaning so owners can visually inspect tanks and connections during maintenance routines.”
  • Gray tank odors entering the RV

    • “Cleans gray tanks and plumbing of built‑up food, soap, and residue that contribute to foul odors.”
    • “Deodorizes gray tanks and helps keep sink and shower traps smelling fresher between dumps.”
  • Slow drains and standing water

    • “Helps loosen and rinse away soap scum and light buildup in gray lines and traps.”
    • “Used as part of routine tank flushing to support free‑flowing drains.”
  • Clogged or sticking valves and gunked sensors

    • “Cleans tank walls and helps reduce residue around valves and level indicators.”
    • “Regular cleaning helps keep valves and internal surfaces free of heavy buildup for smoother operation.”
  • Capacity anxiety and fast‑filling gray tanks

    • “Helps reduce sludge and scale layers inside tanks so more of the designed tank volume remains available.”
    • “Ideal for seasonal or trip‑to‑trip cleaning to keep tanks closer to ‘like‑new’ cleanliness.”
keep rv boat tank fresh with rv & boat tank treatment cleaner

Keep Your Water Tanks Fresh, Clean and Odor-Free

Your mobile lifestyle deserves a cleaning solution that works as hard as you do. Our SolutionsHOCL™ RV Water Tank Cleaner and SolutionsHOCL™ Marine & Boat Tank Cleaner are specially formulated to clean, refresh, and maintain freshwater and greywater tanks in RVs, boats, yachts, and more. Whether you're on a weekend road trip or living life on the water, our eco-friendly cleaners help keep your tanks crystal clear and fresh-smelling, without harsh chemicals.

Clean Tanks = Happy Travels

Clean water tanks are essential to enjoying the road or the sea. Avoid musty odors and clogs with our simple, effective cleaning system. Whether you're docking for the season or prepping your RV for a new trip, keep your tanks fresh with confidence.

Powerful Ingredients, Purpose-Driven Formula

  • NaDCC

    Sodium-Based Cleaning Compound

    Releases hypochlorous acid (HOCL) when mixed with water, a powerful cleaner that breaks down organic buildup and helps deodorize without harsh chemicals.

  • Sodium Bicarbonate

    Sodium Bicarbonate

    Known for its deodorizing and gentle scrubbing abilities, this ingredient helps lift grime and balance pH.

  • sodium citrate in solutions hocl (hypochlorous acid) cleaners

    Sodium Citrate

    Enhances the removal of mineral deposits and prevents scale formation.

  • ascorbic acid c in solutions hocl (hypochlorous acid) cleaners

    Ascorbic Acid (Vitamin C)

    Helps remove rust and metal oxide deposits, keeping the tank’s interior clean.

Why Choose Our Natural Tank Cleaners Over Harsh Chemicals?

Feature Our RV and Marine Tank Cleaners Traditional Chemical Cleaners
Image RV & Boat Cleaners Traditional Chemical Cleaners
Eco-Friendly IngredientsYes, Natural, Eco-FriendlyNo, Often toxic and harsh
No Residue or Harsh SmellYes, Leaves tanks fresh & neutralNo, Can leave chemical odor or taste
Made for Water Storage TanksYes,formulated for RV and boat tanksNo, Requires flushing or rinsing
Protects Tank MaterialsYes, Gentle on plastic, metal, etc.No, May corrode or degrade parts
Fast & Effective CleaningYes, Works within minutesMixed, Some require long soaking
Compatible with Septic SystemYesNo, can disrupt septic balance
Easy to UseYes, Just mix wait and flush No, often slow and messy
Reduces Maintenance CostsYes, Prevents buildup & clogsNo, May cause long-term damage
respect nature with hocl rv tank treatment cleaner

Respect Nature While You Explore It

Whether you're parked near a forest, boondocking in the desert, or floating on the ocean, your cleaning choices matter. Our formula is biodegradable and eco-friendly, designed to break down into simple compounds. Flush tanks at dump stations, marinas, or designated areas in line with local regulations.

Enjoy your journey with low-impact, eco-friendly tank maintenance.

Essential for Every Trip

Think of our tank cleaners as your on-the-road companion for tank maintenance. Whether you're prepping for a cross-country trip, cleaning up after a weekend escape, or winterizing your systems, our packets are compact, lightweight, and travel-ready. No more lugging gallon bottles or measuring liquids.

Clean Tanks, Clean Travels, RV and Boat Essentials

  •  Water Storage Systems

    Compatible with All Tank Materials

    Formulated to work with plastic, fiberglass, and metal tanks without causing damage or corrosion.

  • Using hocl improves water flow

    Improves Water Flow

    Reduces mineral buildup and blockages, keeping your water systems running smoothly.

  • hoci Perfect for Seasonal Maintenance

    Perfect for Seasonal Maintenance

    Ideal for pre-trip prep or end-of-season deep cleaning to keep your tanks in top shape.

  • Fast Easy Application

    Fast-Acting Formula

    Starts breaking down grime and buildup within minutes, with no long soak required.

  • solutions hocl (hypochlorous acid) cleaners trusted by science

    Scientifically Backed Formula

    Developed with effective ingredients that target organic waste and buildup.

  • solutions hocl (hypochlorous acid) cleaners use versitile

    Versatile Use Across Systems

    Effective in cleaning both fresh water tanks and grey water systems.

Frequently Asked Questions: Everything You Need to Know

RV Water Tank Cleaner

How often should I clean my RV water tank?

We recommend cleaning your RV water tank at least once every 2 to 3 months, or after each extended trip for best freshness and performance.

Does this cleaner remove buildup and odors?

Absolutely! Our formula breaks down organic buildup and neutralizes unpleasant odors without leaving behind any chemical taste.

Do I need to flush the tank after using the cleaner?

Yes, a simple flush with clean water is all it takes to ensure your system is ready for use again.

Marine & Boat Tank Cleaner

How should I dispose of the water after cleaning my boat tank?

Dispose of tank water at marinas, dump stations, or designated facilities in line with local regulations. The formula is biodegradable and breaks down into simple compounds.

How long does it take to work?

Typically, it starts working within 20 to 30 minutes. For heavily soiled tanks, allow it to sit longer before flushing.

Can I use this cleaner while the boat is docked or moving?

Yes, it can be used while docked or in motion, making maintenance more convenient during travel.

General Questions

Are these cleaners eco-friendly and biodegradable?

Yes! All of our products are made from eco-friendly ingredients and are fully biodegradable.

Do I need any special tools or equipment to use it?

Nope! Just mix with water as directed, pour into your tank, and let the cleaner do the work.

Can I use these products for commercial vehicles or boats?

Yes, they're ideal for both personal and commercial RVs, boats, yachts, and more.