Strange unidentified smell in carpet?
We Have Just Moved Into Our New Flat, (We've Been Here For 2 Weeks) And For The Last Week We Have Had A Smell At Our Frontdoor Which Is At The Bottom Of Our Stairs. It Appeared Out Of Nowhere One Night When I Was In The Flat On My Own And My Partner Was In Work. I Didn't Even Go Down The Stairs That Night So It Couldn't Be That I've Spilled Something On The Carpet Or Walked Anything Into The Carpet, Yet As Soon As My Boyfriend Walked In The Door From Work He Got Hit With This Smell That Slightly Resembles Brussel Sprouts. We Thought Maybe It Could Be Our Rubbish Which Is Kept In The Hallway Just Outside The Door Until Bin Day, But The Rubbish Is Gone And We Have Disinfected The Bins And The Smell Still Returned. It Seems To Go If We Keep Our Front Door Open So It Can Air Into The Hallway But As Soon As We Close The Door It Starts To Come Back!? We Can't Figure Out What Could Possibly Be Causing The Smell, The Carpets Are All New So It Shouldn't Be Them. Any Ideas? Please Help As It's Driving Us Mad!