comments:
I've had really good luck with this brand and it's less expensive. Funny, I do that with my carpet cleaner, but I took it one step further! I bought one of those large needles like what a chef would inject a turkey with and I bought a blacklight headlamp. I went around in the dark injecting it into the carpet all the way down to the subfloor. Worked great! In the situation the OP has though I would not do that because that's going to be a horrible stench that's going to make it smell even worse. https://a.co/d/011kQjzd
I tried many, which led me into stronger, industrial type enzymatic cleaners. I settled on Nilodor BEON Urine Enzymatic Cleaner. It's the only one that actually ate the urine to the point that you could visually observe the yellow coloring disappear over its application time. Remember, enzymatic cleaners take a long time to work. Like days. Keep it wet so that the action continues. You also want to remove as much as possible first via extraction. https://www.amazon.com/Nilodor-128-ZCM-Digester-Cucumber/dp/B0113ZHXM8?ref_=ast_sto_dp&th=1&psc=1 Edit: I do have Biokleen but wasn't impressed.