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#### jaykim

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I would like to make a small-scale foam generator injector for Bora Care for home use.

I saw that the psi for the foam-generator injector is about 10 or so. What air compressor would be best for this application? I not want to spend lots of money for the air compressor, and I want it to be as light and portable as possible.

The foam generator injector in the
link is the one I want to make.

Thank you very much.

#### DexterII

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I may be way off base here so would gladly defer to someone with any knowledge with such an application, but am thinking that the math involves air flow through an orifice, and that in this case the orifice size would be the inside diameter of the hose. I have a flow sheet someplace, can't locate it right now, but if you google "air flow chart" or anything like that I imagine you can find plenty of charts and calculators online. You are looking for X cubic feet per minute, or cfm, and you can figure an air compressor delivers something in the range of 3-1/2 to 4 cfm per horsepower. And I assume that you need to lean toward the heavy side because you're pushing more than just air through, so there's resistance to overcome. If I had to guess, it would be that you're going to end up needing something like a 2-3 HP compressor.

#### mathmonger

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I may be way off base here so would gladly defer to someone with any knowledge with such an application, but am thinking that the math involves air flow through an orifice, and that in this case the orifice size would be the inside diameter of the hose. I have a flow sheet someplace, can't locate it right now, but if you google "air flow chart" or anything like that I imagine you can find plenty of charts and calculators online. You are looking for X cubic feet per minute, or cfm, and you can figure an air compressor delivers something in the range of 3-1/2 to 4 cfm per horsepower. And I assume that you need to lean toward the heavy side because you're pushing more than just air through, so there's resistance to overcome. If I had to guess, it would be that you're going to end up needing something like a 2-3 HP compressor.
He could shoot foam onto the roof with a 2-3 HP compressor! A 1/3 HP compressor would be plenty.

https://www.harborfreight.com/air-t...si-oil-free-pancake-air-compressor-61615.html

I'd also look into a "high volume inflator" instead of a "compressor". They are made for blowing up pool toys and stuff. Not much PSI, but they move a decent amount of air. They typically run on batteries. If you could make that work, it would be more convenient.

https://www.homedepot.com/p/RYOBI-1...olume-Power-Inflator-Tool-Only-P738/300997599

#### jaykim

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Thank you DexterII and mathmonger very much for the comment.

DexterII, I did not know there is that much math involved in making the small gadget.

mathmonger, I will look at those products to see which is more suitable for my purpose.

I would appreciate any other recommendation of good quality suitable one.

Thank you.

#### Bondo

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I would like to make a small-scale foam generator injector for Bora Care for home use.

I saw that the psi for the foam-generator injector is about 10 or so. What air compressor would be best for this application? I not want to spend lots of money for the air compressor, and I want it to be as light and portable as possible.

The foam generator injector in the utube link is the one I want to make.

Thank you very much.
Ayuh,...... Look right here, for massive air flow, at lower psi,.....

Just adapt the end to yer hose,.......

#### jaykim

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Thank you Bondo for the comment.

That is really neat and inexpensive. But can the long nozzle where the air comes out come off from the base? If so, how would you adpat that to a 1/4" to 1/2" hose?
I will take a look at those at HD.

Thank you.

#### udraft

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Something similar to this
Easy to move around, regulator will adjust PSI to where you need it. Handy for car tires also.

#### Bondo

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Thank you Bondo for the comment.

That is really neat and inexpensive. But can the long nozzle where the air comes out come off from the base? If so, how would you adpat that to a 1/4" to 1/2" hose?
I will take a look at those at HD.

Thank you.
Ayuh,..... Somebody put 'em together, so there's gotta be a way to take 'em apart,........

How ya adapt it to yer needs, is the differences 'tween bein' a cultz, 'n bein', Handy,......

They're not all the same, 'n ya ain't picked one yet, anyways,....

I kinda stumbled into such Ideas, lookin' at air entrained, 'n light-weight concrete cast with soap bubbles,.....
Hi-volume air at lower pressures,....

#### jaykim

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Thank you udraft and Bondo for the comment.

udraft, are you referring to any specific kind? There are so many on the web site.

Bondo, you are right. I will go and take a look.

Thank you very much.

#### coffeecup

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Jaykim, how did this work out? I am looking for equipment for application of Bora Care to my attic and crawlspace as well.

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