Stains on carpet from wet cardboard
I've realised that this is more a professional forum for those that work in the cleaning industry. I'm just a person with a question: there's been a slow leak somewhere in my laundry, and it wet part of the wall and carpet in the adjoining bedroom. I had some cardboard boxes next door and didn't notice until later. Now there's some brownish stains (with a bit of black) on the carpet in the bedroom. Any suggestions as to how I can at least lessen the effect? The carpet is a weird light speckly tan/brown/beige not-sure-how-to-describe-it colour to begin with. The landlord pretty much never fixes anything until it's an emergency (e.g. blocked toilet, leak from bathroom above). Then again, my rent has been the same for the 5 years I've lived here, so that's a tradeoff I guess. My concern here is that I won't get my bond back when I leave.
Thanks for your help guys!