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Non-Toxic Anti-Freeze, 1 Gallon


Non-Toxic Anti-Freeze, 1 Gallon (3.78 liter) Containers

Anti-Freeze protection good to -50 degrees.

Corrosion Protection additive

Can be used for winterizing RVs, Cottages, Pools, Boats, Campers

Non-toxic and Biodegradable formula

Hall-Chem Brand of plumbing anti-freeze; recommended for winterizing of fresh water plumbing systems and swimming pool filter systems. Recommended for solar swimming pool hot water systems using a heat exchanger. Can be used with potable water applications


Thoroughly drain all water from holding tank, lines and water heater, removing filters in purifier.

Add plumbing anti-freeze full strength to the holding tank.

Bleed and drain the system

Not necessary to dilute; plumbing anti-freeze may be used as is. Non-toxic, so if potable water is used from the system after the anti-freeze is removed, simply flush the system until all color is removed.

See solar_water_heater_installation_manual for plumbing instructions

4 kg (8.8 lb)


Sinisa Puzic's picture
By Sinisa Puzic on

In a just 10-15 minutes of browsing your site you became my favorite site and bookmarked one. Thank you for all real info especially in how to properly connect Solar Water Heater (SWH) with PDF instruction sheet

Keep the great work running and FreeFuelFOREVER :)

Kind Regards


Sinisa - in desperate need to start using freefuelforever :)