Going LARGER than recommended (surface cleaner)?

@LanglinaisServiceCo
Just curious what you went with and how well it’s been worked my?

Looking for recommendations for a surface cleaner. What size for my machine, 2 or 4 nozzle, etc. I see a lot of people going with the 20” Whisper Wash classic or hammerhead with a 4gpm machine. I’m willing to put the money down on a good one. Wondering if I can go a little bigger? I have a Landa PGHW 5-5000. I was looking at a 24” Whisper Wash Ground Force.

I’m just starting out this year as a side business. I will be subcontracting myself through my full time job and we mainly work on commercial properties. I wish I would of found this site before I bought my machine. There is so much valuable information on this forum, I have learned so much from you all already.

Thanks I’m advance for any advice.