How to Clean Rust on Stainless Steel Plunger Pump Appliance

Avoid damaging the chromium oxide layer by avoiding the use of cleaners that contain chlorides (fluorine, chlorine, bromine, iodine, etc.). Cleaners containing alcohol, ammonia or mineral spirits can also damage the protective layer. Do not use steel wool or steel brushes as minute particles of these carbon steel articles may adhere to the stainless and begin to rust. Avoid any caustic cleaners containing any of the above. If these compounds were to be used extreme care must be used to remove any and all traces of the cleaner as these chemicals damage the chromium oxide layer.

Stainless steel and the chromium oxide layer actually thrive on proper cleaning. For everyday cleaning of non-oxidized soils, dust, dirt and fingerprints, a mild soap/detergent (dish detergent) and warm water solution should be used. Use the solution to remove the soil, rinsing with fresh water and a clean cloth, and dry completely.

Removal of oxidized stains and even “surface rust” can be done by using a paste made from baking soda and water or a cleaner that contains oxalic acid, such as Bar Keeper's Friend Soft Cleanser.

If using baking soda and water, use a cloth or soft bristle brush, rub the baking soda in the direction of the grain. This may take a little effort but this will remove these soils. When cleaned, rinse with clean water on a clean soft cloth.