Remove salt, protect your engine, and extend its life.

Made at our Chesterfield headquarters, Blu Thru Boat Engine Salt Flush Tablets provide a fast, efficient salt-flush system that enhances cooling performance while protecting your valuable equipment. The advanced formula is specifically engineered to remove built-up salt, reduce corrosion, and safeguard vital internal components such as seals, gaskets, and water pumps.

Whether you operate an inboard, outboard, or jet ski, Blu Thru Boat Engine Salt Flush Tablets offer a no-scrub cleaning and inhibitor solution that is safe for a wide range of marine gear.

Using Blu Thru with the Boatworld Outboard Motor Flusher

For the most thorough maintenance routine, we recommend using these tablets alongside the Boatworld Outboard Motor Flusher. This setup allows you to flush your engine effectively while it is out of the water. By using the Boatworld Dual Feed Outboard Motor Flusher, you ensure a consistent flow of fresh water and cleaning solution through both sides of the engine intake. This is particularly beneficial for larger outboards where maintaining high water pressure is essential to reaching the top of the cooling galleries and ensuring every trace of salt is neutralised.

Why Choose Blu Thru?

Exceptional Value: Each 80-tablet bottle produces up to 10 gallons of cleaning solution.
Eco-Friendly: The formula is non-toxic, biodegradable, and detergent-free.
Time-Saving: Complete a full engine flush in under five minutes.
Portable: Lightweight and spill-proof packaging makes it ideal for travel and storage.

Looking to Upgrade Your Engine?

While Blu Thru Boat Engine Salt Flush Tablets keep your current motor in peak condition, did you know that we stock a comprehensive range of outboards to suit every type of inflatable and small craft if you are looking to upgrade? From the latest petrol outboards

For those who prefer traditional power, we stock petrol outboards from Tohatsu, Honda, and Orca. We also offer a wide selection of electric outboards for a quieter, cleaner experience, featuring industry-leading technology from ePropulsion, Blade, Momentum, and Remigo.

What Our Customers Say

"Top class product. Been using Blu Thru Boat Engine Salt Flush Tablets for a good number of years on my Suzuki DF70 outboard with excellent results. Can be used through the flushing connection, but I use them with muffs. Can definitely recommend." Robert S.

"Probably the best marine engine flushing agent." Andrew P.L.

"Bought Blu Thru from Boatworld to get salt out of my outboard when taking it in the sea – kit comes with everything you need... tablets and hose attachment… not a bad price either!" Vincent

"Been using them on my skis for a few years now – wish I’d known about them years ago!" John B.

Recommended Tablet Usage

Application	Recommended Tablets
PWC / Jet Ski	4 Tablets
Outboard Engines (1-50hp)	4 Tablets
Outboard Engines (51-150hp)	6 Tablets
Outboard Engines (151hp+)	8 Tablets
All Inboard Engines	8 Tablets
Boat / PWC / Equipment Wash	2 Tablets

Please note: Tablets Only (mixer unit not required) for inboard engines, as the tablets can be simply dropped into the sea strainer.

Blu Thru

Boatworld Dual Feed Outboard Motor Flusher

Blu Thru Boat Engine Salt Flush Tablets

Blu Thru Boat Engine Salt Flush Kit

Boatworld Round Outboard Motor Flusher