I have been considering adding a 48" or 60" surface cleaner to use on large jobs (150,000 sf +). I currently have a 30" with a 3500 PSI / 8 gpm pressure washer and it works great. If I go with a 60" I think I would need to buy a 10 gpm pressure washer which should handle it. I think my current pressure washer should be able to handle a 48". Does anyone have any experience with a 48" or 60" that could give me some advice. I’m also wondering if you have to go slower with a larger unit.
