If you washed everything out with tap water then you will have killed off the good filter bacteria and now there is nothing left to break down the fish food and waste in the water. Cut the feeding back to once every couple of days and do a 50% water change each day until the water clears. Then do the water change every couple of days for the next month.
Filter materials should only be washed out in a bucket of tank water. The filter case and motor can be rinsed out under tap water.
If you have to change any of the filter materials then you should only change about one third of the filter media, then wait a few weeks before youi change any more.