Decided to do a full vacuum the other day and removed my weir door to run the hose through it. Dang thing was full of water........and as I held it up to drain....it wasn't exactly BBB crystal clear pool water!@ My door is made out of three plastic pieces glued together and one piece started to pull away a bit. Anyhow, I expoxied it when it dried out. Just though I'd let folks here know yet ANOTHER place to check when you need to go to shock level.