the [moron] who origionally built the shop built it in 4 pieces- the workshop, the big bay area, the back (what we're working on), then the storage room. Well, since it was built in 4 pieces with no foreplanning, he built the big bay with such a pitch that if he continued it on the back piece, it'd be 6 feet high at the back of the shop. So he gave it less pitch- which now makes the water puddle when it runs from the tall slope to the shallow slope.