I am about to move out of an apartment that I not only potty-trained my daughter in (lots of peepee messes) but had a puppy in for a little over a month with CONSTANT accidents. The office has told me that they come in with a "stick" that detects urine and I will have to pay way over $500 to replace the carpet. Is there any way I can mask/remove this so they wont see the urine markings in the UV Light? I'm thinking of buying one off of amazon.com but I still need a remedy!!! Like, a UV urine sensor BLOCKER. any ideas? thanks