Can I use bleach in my pressure washer?

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You must NOT use any household bleach with your machine. By using them you will damage the seals and o-rings in the gun, wand, hoses and pumps. Detergents which are strongly solvent based – such as those used to remove moss or algae, are usually not suitable for pressure washers and can cause hose/machine degradation. [unless otherwise stated on the bottle]

We certainly would not recommend using strong chemicals like bleach, ammonia or petroleum based solvents