I'm looking at buying a self car wash with 4 bays. **Questions for any self car wash owner/operators.** What are the daily / weekly tasks? How long does it take each day to do the routine service and maintenance? Is it worth hiring an employee/contractor to do the routine maintance? Or easy enough to do yourself? Any tips on making a self wash safer for customers? ie, signage, LED lighting upgrades, where to place security cameras, etc. Thanks in advance!