Therma-Kleen Vapor Steam Cleaner

Frequently Asked Questions
It is highly recommended to use distilled, softened, or bottled water to prevent the buildup of mineral deposits (limescale) in the boiler. Using tap water, especially in hard water areas, will necessitate more frequent descaling maintenance.
No, only plain water should be put into the water tank/boiler itself. Adding any other substances can damage the internal components, void the warranty, and potentially create a safety hazard. If a chemical is necessary, it can be applied to the surface manually before steaming, or in some specific models (like the Ultra series), an optional external chemical injection system may be used.
The machine has reached full operating temperature when the heater indicator light begins to cycle on and off, and the temperature gauge reads the optimal temperature (e.g., around 330°F for the #10 model).
A high-pitched audio alarm indicates that the water level in the boiler is low. Turn off the heater switch immediately, release all remaining steam from the gun, and then carefully remove the fill cap to add more water.
On many models, the steam pressure can be adjusted using switches on the wand/gun. For example, one switch provides low pressure, a second provides medium pressure, and both together provide high pressure.
The main maintenance is to regularly flush out mineral deposits from the boiler. This should be done every other week, or as needed depending on your water quality. You can monitor buildup by checking the water residue on a towel; if it is discolored, flush the boiler with fresh tap water until it runs clear.