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Old 01-03-2014, 05:33 PM   #1
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Hello Paint Talk world. I have just recently joined this forum. My purpose is to seek out those who have any issues or questions pertaining to airless paint sprayers. I am lucky enough to be surrounded by decades and decades of knowledge and experience in this area. So, if I don't have the answer myself, someone around me will absolutely have the answer. I feel the more informed everyone is, the better off we'll all be in the long run. I look forward to helping and hopefully learning some things myself in this community.
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Old 01-03-2014, 06:21 PM   #2
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Welcome to PT. Glad to have you aboard.
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Old 01-03-2014, 06:39 PM   #3
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Welcome to PaintTalk!
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Old 01-03-2014, 07:35 PM   #4
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Welcome to the forum!

Portland Compressor is a class outfit .

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Old 01-03-2014, 08:40 PM   #5
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Welcome aboard!
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Old 01-03-2014, 10:12 PM   #6
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Welcome from NW Missouri!

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Old 01-19-2014, 12:12 PM   #7
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I've bought my last two airless sprayers from you guys at Portland Compressor and saved a couple hundred over what the local offerings were on each. Very pleased and have recommended you to a few painter friends of mine.

My question has to do with extra length of hose. The smaller pumps we use are the Graco 490s for interior trim work and I usually add a additional 50' of 1/4" hose with a 3 foot 3/16" whip on the end. I think the last time I checked 200' is recommended max hose length on the 490s so I've always used same diameter hose that comes with the pump. Another painter I was talking to recommended when adding hose to use a 3/8" from the pump to the 1/4" hose leading to the gun to help minimize pressure drop. I walked away pretty skeptical since I'm only running half of the max hose length and in order to run the 3//8" I would have to use a 1/4" to 3/8" union at the pump. We have been using higher viscosity coatings since progressing over to waterborne enamels. Using a 11 orifice tip doesn't require much pressure and I told him I doubt I'd see any difference. The only reason I was still considering checking into this is for times when we're slammed and the 490s fill in for some exterior work with a 517 tip. This is the only time I can see this making any difference. If there is a true advantage then I might try it, but I'm still up against the fence figuring this guy is just blowing smoke.
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Old 01-19-2014, 12:19 PM   #8
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HI J a 3/8 hose is a useful item when using a number of lengths of hose but usually on the larger machines. it would be to bulky for a 490.
usually you find that on the larger machines that have a chassis on wheels. It does help the pump to push bigger, heavier material which the 490 is not suited for. for the output of the 490 I would not recommend more than 100 feet of 1/4 inch hose with a 3 foot whip
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Old 01-20-2014, 10:31 PM   #9
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Salutations...
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