Anyone ever cleaned a dirty concrete boat ramp before?

I have had someone ask me to quote on cleaning their clubs boat ramp (salt water) in the next few weeks. What sort of pressure and flow would I need to be able to clean it?
I currently have a 3000psi machine with 4gpm flow but have a 3600psi machine with 9gpm flow coming soon.
Will these machines with a turbo nozzle be enough to remove barnicles and other stuff that forms on boat ramps? I also can't use any non biodegradable solutions due to everything draining straight into the water.
Thanks

Maybe a scraper too, Turbo nozzle should do pretty good.

Hi Brett. Turbo be the only way to go. Did 1, 3 years ago. You'll shit it in. Take some before & afters as well.

Mate, if you get this job & your new machine arrives in time, you'll wonder why you ever posted this in the 1st place. You'll need an 095 or 010 kit in the turbo. Then all you have to do is hang on!

mick m said:

Mate, if you get this job & your new machine arrives in time, you'll wonder why you ever posted this in the 1st place. You'll need an 095 or 010 kit in the turbo. Then all you have to do is hang on!

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Thanks Mick, that sounds great! I have ordered an 010 size turbo nozzle as I had problems trying to find an 095 turbo nozzle. I can't wait to get the new machine!

BrooksPW said:

Maybe a scraper too, Turbo nozzle should do pretty good.

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Hi Kasey! Do you mean a scraper like a hand held metal paint scraper? That's a great idea for getting any barnicles etc off....Cheers!