Homemade Foamer Plans

[Hummerbk]

I have a gallon of something I bought from Larry sitting in front of me, it's called Super Booster. There is no number on it but Larry said it's a foamer additive to be mixed at seven oz. per gallon. It cost around thirty dollars per gallon...alittle high for me since Dawn is about $11 per gallon with no shipping.

[mbryan]

Hmmm, how much of the Dawn are you using?

[Hummerbk]

One cup ( eight oz. per gal) and we could probably cut back some and still get good foam.

[MMI Enterprises]

Dave,

The schematics are hard as heck to read (too small) and don't do the design justice. Got larger copy?
You know I have the expensive parts pretty much already in my 'DIY HVLP' thread. Just want to make sure I understand the writing behind the brush gizmo and your warnings...

Oh and what's wrong with the superdoug stuff..by zep isn't it?

[mbryan]

Originally Posted by Hummerbk

One cup ( eight oz. per gal) and we could probably cut back some and still get good foam.

I would stick with the Dawn then. Thats a hell of a price per gallon on foaming agent (about 70 cents if my math is right)

[HotShot]

Super Doug is another option. It is caustic based so shipping is expensive, but it is perfect for most maintianed accounts. No mixing involved just add water and foam away.

[David O'Connell Jr.]

I'd like to see the plans as well.

[Hummerbk]

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[Hummerbk]

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[MMI Enterprises]

Thanx for writing that out Dave..
Are you allowing the air side to go full on same as that of chem line or do you have a secondary regulator as I have on my HVLP sprayer? My high capacity DIY hvlp sprayer
With proper valving and regulation piping there no limit to the air to chem ratio you could get. I imagine you want more air to chem so just valving alone on the chem should be sufficient. Wondering what the magic number might be for best foam.
Also, when dealing with chem system like this that could end up seeing someone inadvertantly mixing chems it would be a great idea to have an adjustable pressure release at the tank to prevent exploding tank. Mine has a flip manual release and tank goes to 130psi but that doesn't cover the danger involved.
Anyone know where an adjustable release could be had?
What check valve are you using?. Isn't the airline fittings suitable enough? I doubt if any of any type are really needed in a closed system as without backpressure from gun side being more then the tank side chem won't flow back even with gravity until the tank is depressurized.
The chem side is the only side needing metal fittings but it would be nice to have a local source of stainless fittings. In my tank setup I could have done easier if I would have just conceded to going directly to hose barb and clamp right off the tank. Something told me to not cut up my new hosing though..

[Hummerbk]

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[Hummerbk]

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[MMI Enterprises]

True true on the couplers not being check valves. True also on the drain back of chem being related to closed loop. Such a loop where the air meets up with the chem in that foamer chamber is equalizing the pressure and so yes indeed it can drain back especially if the air side happens to be a tad more. And that is likely.
In a sprayer as I have setup it doesn't drain back from gravity as the air and chem do not meet up as such. Is a total vacuum with no air allowed to come around to take the space of where the chem was. Both air and chem are sepperate in a sprayer gun...

So yea now I gots to make that brush chamber and give this a try as well... I really appreciate the diy effort Dave..good stuff man!!

[dig_dougpt]

I would love to see a video of it in use

[big bad bob]

Hard to see the plans dave. eyes going bad. Would love it If you would E-mail them to me. It looks like a good setup.And thanks you.
rfordan@hopkinsgmc.com