Posted By: jonselWe had a similar problem when we moved in about 7 years ago. The fireplace has never been wet, but the ash cleanout would fill up with water and then come pouring out the opening into the basement. The thing could fill up in about an hour during a serious storm. We would set up a pump to drain it every few hours. It made for some long nights. A structural engineer suggested filling it with concrete. When the contractor came to do it, he realized how small the opening was and how difficult it was going to be to get mixed concrete in there that he simply filled it with dry mix and let nature take its course. I suppose I could probably vacuum out the dry powder that's in there now, but just haven't been bothered. Of course, water being water, it found it's way into our furnace flue which was right next to the cleanout. Haven't solved that one yet...
Promote your business here - Businesses get highlighted throughout the site and you can add a deal.

Thanks!