SLB.
I went through the route you are going down and got great advice of this forum.
If your budget will allow i would go for the ninja as i have myself.
The reasons i based this on was although the prochem is a good machine it does not come with the choice of a heating element in the solution tank , so if you are working where ther is no hot water you are stuffed or you have to use cold and i know some people say that is all you need.
prochem do offer a heat exchanger as an option but this is not cheap, you can also have this option with a ninja or even have a built in one. Ninja with 400psi pump or prochem with135psi pump i know people again will say you dont need 400psi but again you have the choice to turn it down if you want,you cant turn the prochem up. Welll thats my two pennys worh.
GOOD LUCK MATE
CHEERS TONY :
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