If you don't have the air dryer for the air compressor I would get one.
I would also get an air regulator for the pump just in case someone messes with the regulator on the compressor.
Some hose barbs would be a good idea for your spraying hose.
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Superior Power Washing Chris Chappell 361-853-2513 Cleaning Shingle and Tile Roofs in Corpus Christi Texas No Pressure Roof Cleaning in Corpus Christi Texas Texas Certified Roof Cleaner
We use Mobil 1 synthetic oil in both the air compressor pump and the honda engine. There is a big time commercial air compressor place here in Tampa that turned me on to using the Mobil 1 years ago.