This video of a professional carpet cleaner performing a pet urine removal treatment sends up some serious red flags. The carpet that has been damaged by pet urine is glued to what I hope is a concrete subfloor. If its a wood subfloor then there are even more problems then I can go into. Since the video title has the word basement in it, I'm sure it's concrete with glue down carpet.
Pet urine removal is done by applying a urine neutralizer on the affected areas and allowing it to render the urine inert or liquify it so it can be removed. The carpet cleaner in the video is using a urine neutralizing solution that has been poured onto the carpet. It's pooled in several areas and might have spread the urine even further than the original deposits. This could make for a less successful treatment.
Another concern is that there is liquid pooling around furniture that is left in place and can easily damage the finish on the furniture or permanently stain the carpet. In some parts of the video, the carpet looks like it was in a flood and will probably take several days to dry out.
At Chem-Dry of Tampa FL, we do hundreds of pet urine removal treatments a year and not protecting the furniture is a big mistake and will likely lead to more damage down the road. We use a urine neutralizer as well but there is no need to flood the carpet to the degree seen in this video.