Them having 8 cats and no vaccum, DO NOT borrow someones, or their carpet cleaner of they will never lend you something again. My neighbor borrowed ours and cleaned loose cat litter with our carpet cleaner and damned near ruined it and I had to tear it all the way down and clean the entire thing out to fix what they did. Not to mention replacing parts that were gummed up and wouldn't clean.

Don't do that if you don't have the skills/tools to fix the aftermath please.