My new to me C30 has a plastic through hull, plastic winterizing port and plastic raw water strainer all below the water line. The 30 year old raw water strainer is showing fracture marks in the thin, clear plastic. The only all metal replacement I've been able to find so far is a $2800 unit from Groco. Does anyone have any robust recommendations for a new one? The alternative, and probably preferable method, is to make a loop that goes above the water line. Can the raw water pump prime itself if I did this? It's a Sherwood pump on an M25-XP