How to Clean a Stand-Up Paddleboard (SUP) Properly

A clean board is a happy board. Whether you're paddling on a lake, river, or along the coast, your stand-up paddleboard (SUP) comes into contact with all sorts of organic material, grit, and potentially harmful invasive species. Regular cleaning isn’t just about keeping your gear in good condition – it’s essential for protecting the places you paddle.

Here’s how to clean your SUP thoroughly and responsibly.

Why Cleaning Your SUP Matters

• Extend the life of your board: Salt, sand and grime can wear down your board over time.
• Improve performance: A clean board glides better and handles more smoothly.
• Prevent the spread of invasive species: Hitchhikers like zebra mussels and killer shrimp can cling to boards, fins and leashes. If not cleaned properly, they can be transported to new waterways and cause major ecological damage.

The UK’s "Check, Clean, Dry" campaign[1] encourages all paddlers to clean their kit after every session to help protect local waters.

What You'll Need

• Fresh water (ideally from a portable rinse system like the NewFlow Portable Shower)
• Soft sponge or cloth
• Eco-friendly biodegradable soap
• Towel or drying rack
• Optional: disinfectant for deep cleans

Step-by-Step: Cleaning Your SUP

1. Rinse Off Debris

As soon as you finish paddling, rinse your board with fresh water to remove sand, mud, algae and salt. Pay attention to:

• The underside of the board
• Fins and fin boxes
• Deck pad
• Leash and leash plug

A portable shower like the NewFlow 8L Pressurised Shower makes this easy wherever you are – no need to wait until you're home.

2. Wash With Soap

Mix a small amount of eco-friendly soap with water and gently scrub the board with a sponge. Avoid harsh chemicals that could damage your board or harm the environment.

3. Rinse Again Thoroughly

Remove all soap residue with a clean water rinse. Any leftover residue can attract dirt or degrade materials over time.

4. Disinfect (Optional But Useful)

If you’re paddling in multiple locations, especially inland and freshwater spots, soak your gear (board, leash, paddle) in disinfectant or wipe it down to eliminate microscopic species.

5. Dry Completely

Let your board air-dry in a shaded, well-ventilated area. Drying is crucial to stop the spread of aquatic invasive species, which often survive in damp conditions.

Pro Tips for Responsible SUP Care

• Clean your board after every paddle, especially if switching locations
• Use a board bag to protect during transport and storage
• Store your board dry and out of direct sunlight
• Check fins and accessories for trapped debris

Final Word

Cleaning your SUP doesn’t take long, but it makes a big impact. It keeps your gear in top shape, improves safety and performance, and helps preserve the waters we love to paddle.

With tools like the NewFlow Portable Shower, you can rinse off right at the shoreline – making the clean-up process quicker, easier, and more eco-conscious.

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References: [1] Non-native Species Secretariat. Check, Cl