FAQ Keyword Backyard
How do I remove Cat urine and Feces in the backyard?
Odor Kill will definitely remove the cat urine and feces odors. However, It is best used on a site-specific area, such as a rug, furniture, clothing, and car.
Unless, you have the sites identified, you will have to treat the whole yard with odor kill. It will have limited effect since it will evaporate and you'll have to treat again.
Odor kill accelerates Mother Nature's decomposition process. So, the soil in the back yard it will eventually break down the organic feces and urine.
Have you tried spreading pulverized limestone? This has a pH of 10.0 and it will neutralize the acid urine and feces. The next step is the use of "Quick lime," "Hot lime" this has a pH of 12.0+, It is fast acting but could damage your grass. Go to you local lawn and garden dealer and talk to them about which one to use for your area.
As for repelling cats, there is a product out on the market that repels deer. Perhaps it can be used to repel cats. Check into it.