Medi-Vet Animal Health
How To Use
a Mini Urine Finder (UV - Black Light)
crystalline structure of dried urine causes it to fluoresce a dull yellow
color under ultraviolet (UV or "black") light. Thus, a Black Light becomes a
valuable tool for locating the exact areas that need Urine Off.
A few notes on Black
- Incandescent bulbs
that screw in to a regular lamp socket do not work; a fluorescent
tube-type or LED light is required.
- "UV" refers to a
specific band of light wavelength. Generally, urine will fluoresce under
any UV light - but some exact wavelengths do a better job of fluorescing
urine. The Urine Off product line of black lights employs custom
circuitry to produce the optimal light wavelength for urine
fluorescence, and so work better - which means you don't have to have
the room perfectly dark, or hold the light source so close to the
surface. Hardware-store black lights work okay, but are harder to use
effectively for these reasons.
- Urine is not the only
substance that will fluoresce. Some soaps and detergents have components
that fluoresce, even after rinsing thoroughly, as well as some fabrics
and lint. These will usually fluoresce a bright white or even blue-ish
hue, not the dull yellow of urine.
Familiarize yourself with
your new black light
- Use protective
eyewear: Prolonged and direct exposure to UV light can be harmful to the
eyes. The ideal type of protective eyewear is safety goggles that can be
purchased at any local hardware store. These glasses, like most eyewear
made today, filter UV rays.
- Take the black light
into the bathroom and darken the room. Inspect the toilet, especially
around the seat hinges and the outside front of the toilet bowl. This
will allow you to see exactly what urine looks like under black light.
Even the cleanest bathroom will show glowing yellow urine crystals,
because ordinary cleaners simply do not dissolve them.
you're ready to inspect the rest of the facility. Close the curtains/blinds
if necessary to make your work area easy to see under the black light.
How do you tell what's urine and what's not? The color is the first clue.
After that, you'll use common sense and sometimes your sense of smell. You
probably have a good idea where the cat or dog has "gone," or the baby or
elderly family member has had an "accident." The black light will confirm it
- and indicate some spots you never guessed about! Fluorescence 5 feet high
on the wall is probably not urine! But a puddle-shaped area on the floor
near a cat's litter box, or beneath the crib mattress or an incontinent
family member's favorite chair, probably IS urine.
Once you've located all the affected areas, you might want to mark them with
a piece of masking tape or marker so you can find them when the house lights
Now that all areas have been found, use the guide below to remove the urine
odor and stain.
NOTE: Urine Off's bio-enzymatic action is capable of breaking down
the uric crystals completely so that their fluorescence is eliminated,
particularly on hard surfaces like porcelain and glazed tile. The initial
buildup will likely take 2 or 3 treatments, but light buildup will need only
one treatment. Porous surfaces like fabrics, carpet, and even concrete, can
retain so much residue that complete elimination of all fluorescence may
require diligent extraction efforts with commercial equipment. This is
simply too costly - once the urine stain and odor is removed, the goal has
Uric Salt Crystals under magnification
Carpet under a blacklight before and after treatment
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