Size nozzle for surface cleaner

Newbie question maybe but I have a 20inch BE surface cleaner and a 4 gallon a minute 4200 psi pressure washer.
Now I don’t want to damage concrete driveways of all types and or sidewalks but I want to make sure they get good and clean. Is there a certain size nozzle I should be using ?
I just don’t want to damage anything.
Advice would be most appreciated you guys.

https://pressurewashingresource.com/community/search?q=Surface+cleaner+nozzle+size

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25025 tips for 2500PSI

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Are you saying I should get 25025 sized tips in order to bring the psi down to 2500 witch would be safest for not damaging residential driveways?

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Yes exactly that.

I won’t tell you what size to install, you should learn to figure it out yourself by using a nozzle chart. If you have more questions about that, then read marinegrunts posts on nozzle selection. He has covered this many times with new people. After I did all this, then i would insert the nozzles and check it with a guage.

Or you can just lite it up and git it done.

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