All-Flo PT-05 Diaphragm Pump

That is a good brand of air diaphragm pump.

I think what you want is the pump that is kynar, not that pump as the SH will eat up the parts and metal over a short amount of time.

There are threads about the air diaphragm pumps here on this bbs, I think mostly in the roof cleaning section and they will talk about what works and holds up best when dealing with the SH.

With those air diaphragm pumps, you need a large cfm air compressor if you don't have one already, the wheelbarrow type is very popular that gives out large cfm.
 
We use the 3/8 All flow. I would have to say its the best pump I've ever used.
 
I use that same All-Flo PT-05 and I got mine on ebay pretty cheap too. Its a great pump. I use I think its a 9hp 15cfm compressor. I've also fiddled around with drawing from two tanks with it and it'll do it, a little tricky to get consistent draw though(I use check valves and flow meters). I just tapped into the port in the bottom middle of the pump for the second intake. Definitely worth $100 compared to the kynar at a quadruple the price.
 
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"Red" said:
What I want to know is... what psi range does the pump produce leaving the pump.
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Depends on size and length of hose. Also is it gonna be hooked directly to the pump or through a reel? Lot of different factors.
 
Larry Millette said:
Depends on size and length of hose. Also is it gonna be hooked directly to the pump or through a reel? Lot of different factors.
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Without knowing the final setup, is there an expected psi range or under the best conditions, can it produce 700psi? I haven't found any data that even gives me a clue of what it's capable of producing (psi wise).
 
"Red" said:
Without knowing the final setup, is there an expected psi range or under the best conditions, can it produce 700psi? I haven't found any data that even gives me a clue of what it's capable of producing (psi wise).
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If it is for roof cleaning or soft washing the PSI is not really important. My flojet is only about 60 PSI I think 4.7 GPM. I think it sprays about 25 feet the more GPM you get, the further it will spray. Maybe a little more PSI would make it spray a little further without the runoff associated with high GPM though. Just can't imagine you'd need 700 PSI for a roof pump though.

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JDhomeservices said:
If it is for roof cleaning or soft washing the PSI is not really important. My flojet is only about 60 PSI I think 4.7 GPM. I think it sprays about 25 feet the more GPM you get, the further it will spray. Maybe a little more PSI would make it spray a little further without the runoff associated with high GPM though. Just can't imagine you'd need 700 PSI for a roof pump though.
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I'm looking into a foamer that has a different models based on psi. Determining the approx psi output will help me to decide which nozzle to get (if it comes close enough). If I can match up the pump to a nozzle then it would be great for house washing, pool enclosures and roofs. Otherwise I need to look for a pump that will match the nozzle.

The nozzle I'm looking at creates a foam stream up 25' with 3-6 GPM (1000 psi minimum). It also has a fan tip for up close work (walls, siding, fences). Other models will use as low as 35psi, but don't have the range.

Maybe it doesn't use much pressure because the foam is a really sticky looking foam.
 
Derrel, the air diaphragm pump works off of air compressor air which most units only make about 125 or 150psi max so you are only going to get something under 100psi as most guys run 80 or 90 psi like mentioned going into the pump.

The pump does not make more pressure than what goes in there, the pump uses air to push the liquid out the hose so there will be an air pressure loss from pushing the liquid.

So, unless the pump has top-secret alien technology that defies the laws of gravity, laws of nature and laws of physics, you will have less than 80 or 90psi at the gun.

Hope this helps.
 
Christopher said:
Derrel, the air diaphragm pump works off of air compressor air which most units only make about 125 or 150psi max so you are only going to get something under 100psi as most guys run 80 or 90 psi like mentioned going into the pump.

The pump does not make more pressure than what goes in there, the pump uses air to push the liquid out the hose so there will be an air pressure loss from pushing the liquid.

So, unless the pump has top-secret alien technology that defies the laws of gravity, laws of nature and laws of physics, you will have less than 80 or 90psi at the gun.

Hope this helps.
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That's what I'm talkin' 'bout, thanks.
 
Christopher said:
Derrel, the air diaphragm pump works off of air compressor air which most units only make about 125 or 150psi max so you are only going to get something under 100psi as most guys run 80 or 90 psi like mentioned going into the pump.

The pump does not make more pressure than what goes in there, the pump uses air to push the liquid out the hose so there will be an air pressure loss from pushing the liquid.

So, unless the pump has top-secret alien technology that defies the laws of gravity, laws of nature and laws of physics, you will have less than 80 or 90psi at the gun.

Hope this helps.
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Haha! Well said!
 
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