Swimming pool filter pressure gauge suddenly showed abnormal pressure drop from 27psi to below 10 psi. Swimming pool fountain features also noticeably lost pressure. Pump was running louder than usual. No visible leaks. So before calling specialist I decided to remove filter basket and check if something is stuck in impeller: I have cleaned filter basket couple times and have never paid attention to what I believe to be diffuser (part # R0445305) to be sticking out like that in housing. Is it...
