Over the last week some parts of our house have developed a "fishy" smell. We have a leak in one room (not really a real room but joins house to the garage and has corrugated plastic rood) and the smell seems worse when it has been raining a lot. It doesn't seem isolate to this one room though but is definitely in that direction of the house. It got better after I bleached last week but after heavy rain last night it is back with a vengeance. What could it be? Help!
Thanks