check the pressure relief valve

Hydramaster: Boxxer 421

Always flush out DeScaler

but stains are always easier to remove from protected leather

Liqui-Zone is used to attack unusually foul

HydraMaster EVOLUTION Upholstery Tool Base UOM:EACH check the pressure relief valveThe EVOLUTION Upholstery Tool was designed to smooth airflow and boost water recovery performance as compared to the harsh angles of a steel tool. Best of all, the glided head moves across the upholstery fabric better and increases water recovery. The cleaning angle of the single jet shears across the fabric rather than directly down onto it greatly reducing your chances of over wetting. Rotationally molded to reduce weight and increase durability