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gutterdog wrote:

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Roof Cleaning Palm Harbor FL 727 543 3276 wrote:

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???? Your 4 gpm wont run your 20 inch. That's nuts! I've been using. 4 gpm machines for years and have never had a problem running my 18 inch and 20 inch surface cleaners. Heck I was even running a 28 inch big guy for a few years but it was just on new construction clean ups. Yours should run fine.

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 I'll break it out again Larry, the SC. It's part of the trailer anyway. See what happpens. I've only used it once. It's the hammer head from GP. When I tried it I quickly pulled out the lil 12 inch WA.

Thanks!

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 I agree, it should run it fine. If not, turn up the idle speed and it will. If still not, it must have too large a size of spray tips in it.