What kind of detergent should I use with my SPX7001E pressure washer? Use only detergents specifically designed for pressure washers, such as Sun Joe HOUSE + DECK WASH, Sun Joe SNOW FOAM AUTO WASH, or Sun Joe HEAVY DUTY CLEANER. Do not use household detergents, acids, alkaline solutions, bleaches, solvents, flammable materials, or industrial grade solutions, as these could damage your pressure washer. Many detergents require mixing prior to use, so be sure to follow the instructions on the bottle. Related articles What kind of detergent should I use with the SPX-FC34? Can I use any detergent with my SPX160E-MAX pressure washer? Can I use disinfectants to clean with my SPX160E-MAX pressure washer? Can I use cleaning solutions that contain disinfectants with my SPX205E-XT pressure washer? Why does the motor buzz and fail to run?