went to a customers house the other day to look at some black oil based stains he wanted removed. On the surface, it was a sticky yucky mess..and in other parts, there apeared to be engine grease...and then there was big dog urine patches too! I havnt come across these things yet, and this is a first, and as a prochem user, was wondering if anyone had any ideas on the best ways to approach this. I was going to use the urine nuetraliser, on the wee, followed by acid rinse etc..but the sticky mass..was going to scrape, and use solval..followed by a rinse...anypne got any good ideas..It's important that i do a good job on this carpet, as he is the key to a lot of future work.