hi
have cleaned the office carpet tiles and at a glance it looked like this went.
went back when dry to check and you can still see the water mark that is in a ring where the leaking humidifier sat.
used traffic lane and drop of stain pro on prespray and citrus gel around the ring (no puns) this got rid of the whitemark and finished ff rinse.
any ideas on product/method to get rid of watermark?