Did a job 16 months ago - office carpet with large water stain where roof leaked - it was very dirty water stain that needed to come out.
So I used the HWE but I expalined I will charge them X amount for that day but there is a good chance it will wick back - took the time to explain what wick back was - and if it did and they wanted it treated again I would charge them 50% o fthe first visit price and told them I would use a rotary machine. They were ok with what I explained (and that is the key point).
I went back couple days later just to see what it was like.
Just a small shadow could be seen, but they were made up with the job so they declined the 50% price to get rid completely.
They were happy, I was happy, everybody was happy.
We're a happy lot in Warrington
