Salt-Away Mixing Unit inline dispenser with 6 oz reservoir — 1:500 metering, three-position valve

The Salt-Away® Mixing Unit with a 6 fl oz (177 ml) reservoir is a compact inline dispenser that delivers the correct dilution of Salt-Away concentrated solution for outboard, I/O, PWC, inboard flushes and pressure washers.

Keep salt, mineral deposits, and corrosive residue under control by using a purpose-built delivery system. The Salt-Away Mixing Unit is designed to meter one part Salt-Away concentrate to about 500 parts water through a simple three-position valve. It mounts inline or attaches to common flush fittings so you can rinse engines, jet pumps, and hoses with the correct dilution without guessing or mixing on the dock.

How do I install the Mixing Unit on my pressure washer or engine flush?

Installation is straightforward: place the unit inline between the water source and the inlet to your pressure washer or flush fitting, and select the desired valve position. No special tools are required for most setups, and the reservoir threads securely to prevent spills.

• Inline connection: between garden hose and pressure washer inlet.
• Boat flushes: attach to dedicated engine rinse fittings or garden hose adapters.
• Three-position valve (Off, Rinse, Salt-Away) for easy switching.
• O-ring seal in the receptacle prevents leakage during use.

What size reservoir does the 6 oz Mixing Unit hold and why choose it?

The built-in receptacle holds 6 fl oz (177 ml), a compact capacity suitable for short to medium rinse jobs and easier handling in confined spaces. Choose the 6 oz version when portability and lighter weight matter, or when you perform frequent spot rinses and don’t need the larger 12 oz tank.

• 6 fl oz (177 ml) capacity for quick, portable rinses.
• Smaller footprint fits tighter storage and mounting spots.
• Works with the same 1:500 dilution ratio as larger reservoirs.
• Option to upgrade to 12 oz if longer sessions are required.

How does the valve and metering system ensure proper dilution?

The Mixing Unit uses a three-position valve that lets you switch between Off, Rinse (water only), and Salt-Away (diluted solution) without changing hoses. The internal design meters the concentrate into the water stream at the recommended ratio so you achieve consistent results across different applications.

• Three positions: Off, Rinse, Salt-Away for quick mode changes.
• Pre-set metering delivers about 1 part concentrate to 500 parts water.
• Reliable O-ring prevents leaks, maintaining accurate flow and dilution.
• Compatible with both freshwater sources and pressure washer inputs.

What maintenance and temperature considerations should I know?

The unit is simple to maintain: keep the O-ring in place, rinse with fresh water after extended use, and store the reservoir empty and dry when not in service. Because Salt-Away is water-based, the concentrate will freeze at 32°F (0°C); allow frozen product to thaw naturally rather than forcing it, and avoid storing the unit below freezing temperatures.

• Always confirm the O-ring is seated to stop leaks.
• Flush the unit with fresh water after heavy salt exposure.
• Do not force-thaw frozen concentrate; let it warm gradually.
• Store indoors or above freezing when possible to protect the formula.

Who is this for? Boaters, PWC owners, marine technicians, and anyone using a pressure washer who needs a consistent, easy way to apply Salt-Away concentrate will benefit. The 6 oz Mixing Unit is ideal for users who want a portable, no-fuss delivery system for routine engine flushes and light to moderate cleaning tasks. If you routinely run longer sessions or prefer fewer refills, consider the 12 oz reservoir option instead.