Hi Jeremy
Feel sorry for you on this one. Its quite obvious that the dog had wee'd at some stage and just dried - then you come along and re-activate it. If there are pets that you know of when quoting it might be an idea to inform the custy that there could be a chance of this happening - just to cover yourself.
With regards to custy's thinking they know more than a professional (this happens all the time, my brother is a plumber and gets it), I had a quote last week where she had a bit of an attitude straight away so wasnt really bothered in retaining her services, and she said that she knows all about carpet cleaning and has researched it thoroughly so knows what the best method is. I thought right, I can see where this is going. I said "what method would that be and where did you do your research if you dont mind me asking?" She went on to say that she knows a carpet retailer and he said that my carpet is really expensive (an 80/20 :
) and that it should never have water on it LOL! She also said that HWE wasnt the best cleaning method but couldnt explain what WAS best.
I gave her an education to say the least and that was that. I'm sure I wont hear from her agian. JEEZ we do get em don't we
Anyway, I guess you could always go back and try an pinpoint the smell, pull back the carpet and spray a urine neutraliser onto the area including the underlay? Maybe apply a odour kill type product too? To be honest if the smell wasnt there when you first went there then its more than likely that it will die down and go, the act of re-activating it is just that but should dissipate after a while.
If you go back and apply any odour treatments, explain to her that it will fade, its only a case of re-activation of an existing stain (you sure as hell didnt put wee on it) and that to leave it for a week and see how it goes.
Dont forget though, you are not responsible for THEIR stains/odours. We have this in our terms which they sign before we do any work (it's all part of our survey forms).
Good luck
Kev