We have had this horrible smell that lingers in our house. It is coming up from the unfinished basement and it is the worst in the mornings. It is a mixture of must and kitty litter. Now I clean the kitty litter every day so I don't understand how it can smell like that!! I even bleach the container once a week!! We have cleaned the entire basement top to bottom, washed the floors, febreeze all furniture!!! It never used to smell until a few months ago and we cannot stand it!! I have to spray the crap out of the house and have candles burning everywhere to keep the smell down while we have company over. Now, its not a very strong smell, it just lingers...but we refuse to have a smelly house!!!
Any ideas??
Re: SMELL THAT WILL NOT GO AWAY!!
This probably won't help you but maybe just an idea.
I kept smelling what I thought to be a dead mouse (EWWW) in our broom closet. It got worse and worse until I just wouldn't even open the door anymore. I cleaned it out, sprayed it, put air freshner in there, baking soda-you name it-I tried it. Finally the smell started to get less and less til I forgot about it. Then my husband had to take the electric panel off for some reason (the electric panel is in the closet) and a mouse had somehow got in there and died. double YUCK.
So I guess my advice would be to look somewhere like that....Hope you can figure it out! I know how annoying it can be!
Maybe try having your ducts cleaned. Also, you may need a dehumidifier in the basement. A couple months ago was beginning of summer and the humidity may be causing the musty smell and sticking to crud in your ducts.
This. Definitely.
Do you have a drain in the floor down there? Sometimes they start to stink if it is getting plugged. I would snake that out too, and maybe pour some vinegar in.