Got the greenworks electric power washer deal last week for $56 and found a foam cannon today. Reviews seem ok for a value cannon. Some cannons are the price of the power washer.
DUSICHIN DUS-007 Jet Wash 1/4" Quick Release Adjustable Snow Foam Lance, Foam Cannon, 5 Pressure Washer Nozzles for Cleaning https://www.amazon.com/dp/B01MF8E…vBbKM