[HayZee518]

I went to another screen and searched for drain plugs and didn't find much. I would suggest a chunk of oak log tapered to fit the drain and hammered in tightly. there was one blog that had a plumber install a rubber plug but the thing dissolved after two weeks. wood expands when exposed to water. another way - "rube goldberg" plug use screening then oakum with a plug from hydraulic cement. hydraulic cement expands on curing - regular cement shrinks.