No. Do not use acids, alkalines, solvents, flammable material, or bleaches.
These substances can cause irreversible damage to the machine and physical injuries to the operator. Use only detergents designed for pressure washers.
For maintenance of the detergent system, you can run distilled vinegar through the detergent tank to clean it. This is an internal cleaning step, not for surface cleaning.
Maximum inlet water temperature is 104°F (40°C). Do not exceed this.