Cobb's long wave UV light on stains

T Monahan

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Sep 9, 2012
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1,673
Location
Ann Arbor, MI
Name
Tom Monahan
Yellow stains of unknown origin continued to exist even after two washes and a series of H2O2 treatments. The light is now being put to the test.

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More results will follow.
 
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Papa John

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Aug 19, 2013
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San Francisco, CA.
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John Stewart
While having a UV light is helpful at locating urine deposits, I think it also places doubt in the customer's mind about the effectiveness of our cleaning attempts..

That's why i have been hesitant about using the one I own if front of the customer.
 

BIG WOOD

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Feb 4, 2016
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Georgia
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Matt w.
While having a UV light is helpful at locating urine deposits, I think it also places doubt in the customer's mind about the effectiveness of our cleaning attempts..

That's why i have been hesitant about using the one I own if front of the customer.
You need to educate them on the different reflections you get on a treated and untreated spot
 

Ron K

Member
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Jan 3, 2009
Messages
2,371
If you can figure out the secret sauce thats used they are probably effective. I bought the light and it's useless, so I have one for sale! Has the trip-pod and all. Was real expensive. I PM'ed the guy in texas with no answer back. Non rug guys should not sell rug stuff IMO. When you get stuff from Arron or Paul they at least answer questions.
Tom, I've had more success with H2O2 and sunshine.
 

Nomad74

Boy Sprout
Joined
Feb 4, 2016
Messages
23,461
Location
Redding
My UV light is a MONEY MAKER! I carry two on my van and also 5 extra batteries. I get A LOT of urine work. This pic was one of them I had today. I treated 41 spots and also wiped down the walls and doors where a cat had sprayed. Love those spraying cats!

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Larry Cobb

Member
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Oct 7, 2006
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Location
Dallas, Texas USA
Name
Larry Cobb
If you can figure out the secret sauce thats used they are probably effective.
Tom, I've had more success with H2O2 and sunshine.

Ron; Here are the spotting instructions for our UV stain removal:

"These are concentrations of Dynachem Brightener (15% peroxide +penetrant) used for spotting operations for removing water marks, some disperse dyes , or yellow stains.
Concentrations of peroxide used are 7.5% to 15%.

It is done ideally at warm temperatures and pH of ~9.

Use the Brightener from [50% to full strength],
& raise the pH of the mix with DC Shampoo (foaming agent) at 1 oz/quart.
It should begin to foam quickly.

Brush the foaming mixture lightly onto the stain surface with a paint brush.

Apply the UV light to the stain for 10-30 minutes.

Check for removal of stain, & rinse with cold water if satisfied. "
 

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