3M Aqua-Pure Whole House Water System for Scale Inhibition

The 3M Aqua-Pure AP430SS whole-house scale inhibition inline water system is designed to help reduce scale buildup and corrosion, thereby extending the lifespan of hot water-using appliances such as water heaters (standard gas, standard electric, and tankless), boilers, clothes washers, and dishwashing machines, as well as plumbing fixtures like faucets, pipes, and showerheads.

The AP430SS provides an unrestricted flow of up to 10 gallons per minute (37.9 liters per minute) when installed with 3/4" NPT inlet/outlet connections. Scale, comprised of calcium and magnesium mineral deposits, often forms when hard water is heated. Water hardness is responsible for most scale formation in pipes, water heaters, finishes, flat surfaces, and other water-using appliances. Over time, scale buildup can significantly shorten the life of any water-using appliance, and it can also cause a loss of water pressure as the interior of the pipes becomes increasingly restricted.

To address this, the AP430SS contains polyphosphates that bind to calcium and magnesium hardness minerals, preventing them from precipitating out and building up on metallic surfaces. Polyphosphates also help reduce corrosion by forming a thin protective layer on the metal surface. The 3M Scale Inhibition Water System AP430SS is tested by NSF International to NSF/ANSI Std. 42 for material and structural requirements.

The single vessel/cartridge design of the AP430SS makes the 3M Aqua-Pure AP431 Water Filter Cartridge change-out easy for both professionals and end-users. It is recommended to change the disposable filter cartridge every 6 months or sooner if a noticeable reduction in water flow rate is observed.

The AP430SS should be installed on the cold water supply line of the water heater or at the point of water entry into the home. Additional tools and parts, not included, are required for installation, such as a 3/4" stop and waste valve (compression type), PTFE tape, two 3/4" male x 3/4" street adapters, one 3/4" compression gate valve, and a pipe cutter. Careful consideration should be given to measuring the cold water supply line pipe to ensure proper connection sizing and fittings.

The AP430SS can be adapted to various pipe sizes by using a reducing adapter (not included) on either end of the 3/4" NPT head. Adapter fittings (not included) can be sweated, threaded, or quick-connected to adapt to different pipe types, such as copper, galvanized pipe, or PEX tubing, using the appropriate adapter fittings. Galvanized fittings should be used for the installation of galvanized pipe.

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