So I recently bought a condo with a small ground floor patio area. The patio has a small space with concrete blocks along with a larger area around that's filled with gravel. I gather the previous owners had a few dogs that were let out here instead of taking them for walks. As a result, the whole area smells really badly of old urine, as it's probably got 10 years of multiple dogs pissing on it daily.Is there anything that I can do to neutralize this odor or do I have to physically remove everything? via /r/DIY https://ift.tt/37a7URA
