I have to clean the filter/strainer at the beginning of the feed hose to the Kreepy Krauly Legend pool cleaner every 3 to 4 days or it will not move. It has a boost pump on it and a sole hookup on pool wall. Is this normal? I thought this would be filtered water going to the cleaner so how is this trash getting in this one line. I don't see trash by the returns so i can't say the filter is not working.