danielc said:
Exactly. I was planning on sealing the sub-floor, but someone said you could seal the back of the carpet. Like I said, "I have never heard of that," and has it been done by someone?
"OdorBlock", my product, does just that. I developed it back in the 1980's when I did carpet care. I applied it to the carpet backing and it sealed everything in. Doing apartments mainly (but some residentials), I did between 2 and 5 a week, for years and had better than 90% success on the first try.
Originally named "EZG.O.C." (Easy Guaranteed Odor Control), when I first started selling it, I quit making it when I invented PeeBeGone, but customers called and wanted some, so I put it back in production as, "OdorBlock".
Works on carpet backing, carpet fibers and sub floors. Also seals certain types of carpet padding.
It's not the "most thorough" way to do pet odor work, because it doesn't remove the source of the odor. Great for rental units. But in a "full price" residential setting, I'd recommend against using it for the carpet in particular.
$26 a gallon mixes 1 to 3