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I used this for cleaning decks for 15 years. Not the same pump of course. Before I knew anything about downstreaming, I also used it for cleaning siding.

If anyone is interested or would like to chime in, I did look the rig up and it turns out that the thing has a delavan powerflo 7802 series pump on it.

http://www.delavanagpumps.com/powerflo/7801.htm

Says in the specs that it has a Polypropylene Housing, Viton Valves, Santoprene diaphram, Stainless steel fasteners, and a coated motor shell.

Here's a link showing the manual on the unit. http://www.delavanagpumps.com/powerflo/7801.htm

I'm thinking as a guy that may start with only the occasional roof.. I may just buy one and then retire it to only small projects or an emergency spare unit. It sure would lower my start up costs by a huge factor. And the pump looks like it may just last with proper rinsing after use.

What do you guys think? Am I crazy?

Tell me why I shouldn't do this! I respect the opinions and advice I've gotten here.

aaron61 wrote:

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That is my video & rig.That has lasted longer than the 1st 5850 I bought! I now use it for spraying paver sealer & removing wallpaper.

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 Do you put a lot of miles on it?

Do you think it would handle a hundred feet of hose and still have enough pressure to spray a roof?

I do decks too and it looks like it would be great for applying cleaners and brighteners on some of the big ones I end up on.

I didn't even think about paver sealer, I haven't done any of that.

I think I have to go to tractor supply and look at this thing. It might be just what I was looking for to get started with a pump upgrade of course.