- 5L Salt Wash Deteregent
- 5L Outboard & PWC Engine Flush Solution
Wash & Flush BIG REFILL
Wash & Flush BIG REFILL
1
/
of
8
Wash & Flush BIG REFILL
Regular price
$180.00
Regular price
$240.00
Sale price
$180.00
Unit price
/
per
Tax included.
✅ Free shipping Australia-wide
✅ 5L provides over 70 washes & flushes
✅ Australia's most trusted anti-corrosion formula
Stock up and save with our 5L Salt Wash Detergent and Engine Flush Solution – built for serious protection. Perfect for regular maintenance or frequent adventurers, these bulk sizes keep your gear salt-free and running like new. Clean more, refill less, and stay ready for your next mission on the water.
✅ Free shipping Australia-wide
✅ 5L provides over 70 washes & flushes
✅ Australia's most trusted anti-corrosion formula
Stock up and save with our 5L Salt Wash Detergent and Engine Flush Solution – built for serious protection. Perfect for regular maintenance or frequent adventurers, these bulk sizes keep your gear salt-free and running like new. Clean more, refill less, and stay ready for your next mission on the water.
What you get in this bundle
About the products in this kit
5L Exterior Salt Wash Detergent
This high-performance detergent is built to break down salt deposits and mineral buildup before they cause long-term corrosion. Infused with anti-rust inhibitors and a powerful degreasing formula, it’s tough on grime but safe on paintwork, plastics, glass, gel coat, and metals.
Use it through The Captain’s Musket or your foam cannon to get a thick, even lather that clings and cuts through the muck. It is ideal for boats, jetskis, trailers, 4WDs, RVs, and any gear exposed to salt or the elements.
Dilution: 100ml per wash (1:10 ratio)—a single drum can provide up to 50 washes.
5L Engine Flush Solution
Salt doesn’t just sit on the surface — it gets inside your cooling system where you can’t see it. That’s where this solution comes in. Designed to flow through your outboard, jet ski, or PWC cooling system, it breaks down internal salt build-up and leaves behind a protective barrier to reduce corrosion.
Use it with a flush port adapter or run it through The Captain’s Musket with the flush setting for quick, no-fuss maintenance.
Perfect for both saltwater and brackish conditions, this is your engine's best mate after every mission.
FAQ
Q: What’s the pH level of the Salt Wash Detergent?
A: The Salt Wash Detergent is pH neutral (~7), making it safe for frequent use on a wide range of materials without causing degradation. It’s effective at removing salt residue and grime while being gentle on paint, gelcoat, rubber, metals, and plastics.
Q: Will the Engine Flush affect rubber seals or gaskets in my outboard/PWC?
A: No — the Engine Flush Solution is formulated to be non-aggressive and is safe on rubber seals, O-rings, gaskets, and internal cooling components. It won’t dry out or degrade sensitive parts.
Q: How long should the Engine Flush be run for?
A: We recommend running the flush for 2–3 minutes through your outboard or PWC cooling system. This allows enough time to dissolve salt build-up and circulate corrosion inhibitors throughout the internal pathways. Always follow with a clean water rinse.
Q: Does the Salt Wash leave any residue?
A: No. The Salt Wash is designed to rinse clean, leaving behind no sticky or soapy residue. It does, however, leave a light protective film that helps inhibit corrosion and slow down salt crystallisation between washes.
Q: Is it safe on aluminium, stainless, and coated surfaces?
A: Yes — being pH neutral, it’s 100% safe on polished and anodised aluminium, stainless steel, powder-coated parts, and painted surfaces. It’s perfect for boats, trailers, bullbars, and other marine or 4WD components.
Q: How many washes can I get from the 5L Salt Wash?
A: Each wash typically uses about 70ml of product, which means you can get up to 70 washes from the 5L bottle. Usage may vary depending on how heavy the salt build-up is and your foam gun settings.
Q: Is the Engine Flush suitable for all engine brands?
A: Yes. The solution is compatible with all major outboard and PWC brands including Yamaha, Mercury, Honda, Suzuki, Sea-Doo, and more – as long as they use a raw water cooling system with a standard flush port or earmuff adapter.
Shipping & Delivery
Location: Our warehouse is located at 2/14 Thomas Hanlon Court, Yatala 4207.
Free Shipping: All Australian orders over $170 qualify for free shipping*
Flat Rate Shipping: For orders under $170, we offer a flat rate shipping fee of $9 within Australia*
*International orders will be required pay for up-to-date shipping charges, calculated at checkout. Bulky items incur additional shipping charges, calculated at checkout.
Shipping Carriers: We use Australia Post and Aramex within Australia.
Dispatch Time: Orders are typically dispatched within 1-3 business days.
Delivery Times:
Australia:
- Metro Areas: Standard 2-5 business days & Express 1-3 business days
- Western Australia & Northern Territory: 3-7 business days & express 2-3 business days
International:
- Express: 5 business days
- Standard: 7-10 business days
Pickup: Local pickup is available from our warehouse at 2/14 Thomas Hanlon Court, Yatala 4207. Please select the "Pickup" option at checkout.
Possible Delays: Occasionally, shipping may take an extra day or two. If your order takes longer than expected, please feel free to reach out to us at admin@saltycaptain.co.








REAL REVIEWS. REAL CUSTOMERS
The freshest reviews are in
CAPTAIN’S TIPS
The Wash & Flush BIG REFILL works great with these products: