Live in central Mass and the home was built in the early 80's. Whenever there is alot of rain like we've been having lately or alot of snow melting quickly, water seems to come up from the bottom of the chimney clean out and out the clean out doors. When that happens, water also comes up out of the garage floor drain. The garage floor drain i've tried to find out if its clogged but with a snake i couldn't find any certain direction that a pipe could run out. The garage doesn't worry me because its just a garage and nothing of importance is there but the chimney has me worried. Any ideas where to start with this mess?