[AT] OT--foam marker for sprayers

[Len Rugen]

I saw plans, but I've never tried this.  They used a plastic fuel can, a fish tank air stone, small air pump and the foam mix to make a marker.  This made the foam in the fuel can and just used a 3/4" or so hose to run to the end of the boom, then it expanded to a 2" or so nozzle to make larger foam blobs.  I've considered making one, but lacked "A-Round-Tuit".....

Len Rugen

rugenl at yahoo.com


 

     On Saturday, January 10, 2015 7:39 AM, Indiana Robinson <robinson46176 at gmail.com> wrote:
   

 Hi John:
I never used foam markers but I used to work on foam generators on carpet
and upholstery cleaners. They used a small screen about like window screen.
The soapy water was sprayed onto the screen and air was blown through the
wet screen.
Just tiny versions of Lawrence Welk...  :-)





On Sat, Jan 10, 2015 at 8:07 AM, <jtchall at nc.rr.com> wrote:

> COMPLETELY OT POST
>
> I know some of you farm full time. How does a foam marker system for a
> sprayer make foam? From what I can tell looking around on the net the air
> and liquid foam solution are fed in 2 separate lines to the end of the boom
> where they mix in some sort of small chamber before being discharged. How
> does the mixing chamber work? Is the liquid solution fed under pressure
> from the tank?
>
> I've read up on the homemade systems that generate the foam in the tank
> and have constructed a prototype of that. Unfortunately it appears I have
> to use rather large pipe to be able to push the foam down the pipe. With
> long enough hose, you actually build back pressure on the tank using
> something small like sprayer line. My prototype uses 1 1/2" PVC pipe. Works
> very well but takes a long time to generate enough foam to start dripping.
> I also have a concern of how I will switch from one boom to the other.
> Small solenoids aren't cheap, I haven't priced the size I would need. I've
> considered using 2 tanks and 2 compressors, would be a lot cheaper than
> solenoids. To keep from having to wait on the foam due to switching from
> one tank to the other I could let both run all the time. Another reason I
> dislike this system is the water in the tank tends to slosh up on the foam,
> meaning I would need a baffle of some sort in the tank.
>
> Any help is appreciated.
>
> John Hall
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>



-- 


Nothing will teach you patience like a horse. Rule #1, the horse is rarely
wrong...
If you want to get inside of a horse's head love is the key, not anger or
impatience and never revenge. Pet it, groom it, feed it, water it; and only
then ask it to work with you as a friend.

Francis Robinson
aka "farmer"
Central Indiana USA
robinson46176 at gmail.com
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