Sounds like your owner has strong opinions that not everyone here will agree with. Again, I'm running 20 year old pumps with pump gauge pressures of 1200-1400 to get 1000 psi at the tip. I've had one bearing failure out of nine pumps in twenty years. personally I'd find the source of premature pump failure and let her ride. There is a reason that Cat probably has 80% of the car wash market. But if he insists on swapping to general, have at it. No car wash quality is judged by pump brand. Way too much other stuff to worry about