Pet Urine Removal

Armed with our in-depth knowledge on urine composition, we have a matured and systematic approach on urine removal.

Pet (and occasionally human) urine removal, is a daunting task for carpet cleaners and three factors makes urine treatment challenging: (1) the complexity of urine composition; (2) accessibility issue; (3) detection issue.

Components cause urine smell and colour

Urobilin (urochrome) is an organic compound responsible for the yellow colour of urine , and thus yellowish stain on the carpet.  It is not soluble in water and cannot be removed by water extraction. Urobilin, freshly deposited on the carpet, can be destroyed by oxidizing agents.  However, if the urine presents on the carpet for too long, it will cross link and form a net work and becomes “hardening”.  Therefore, old urine stains are hardly to be eliminated.

With regard to the urine smell, the lingering smell of urine after many days is due to uric acid: an organic compound not soluble in water and thus difficult to be removed.  

Accessibility issue

Urine fluid, if  in large amount, can penetrate underneath the backing, and goes further into the underlay, or even the concrete floor.  The odor emitting uric acid crystals may stay deep underneath, and is beyond the reach of the carpet cleaning solution.  Therefore, a large amount of cleaning solution has to be “poured” into the carpet and sometimes, the carpet has to be lifted to reveal the underlay.  Normally, a new piece of underlay will be installed under these circumstances.

We will assess each situation and based on our assessment and the client’s requirement, we can make a solution for each individual case.

Detection issue

Identification of all the odor sources is critical for eliminating them. Except for the visible stains, we use backlight and moisture detectors to pinpoint the potential sources. Of course, we also rely on client’s help on locating urine sites.