The small moeller quad is completely stopped up. I removed both hoses and tried to back flush the magnet using return and then supply pressure into a bucket. After a small trickle that would represent water in the hose flow stopped completely. Hose color is reversed at the moment and should be changed when the magnet is put back on line. The orings at the connection to the magnet have disintegrated and should also be replace as the system is reconnected. I would not recommend powering the magnet until this problem is fixed. I have left the supply breaker off but the system is unlocked in case magnet group is able to work this weekend.