Product review (1 stars): the unit installed fine but flow is restricted by about half
Bought several of these at retail stores over the years with no issue.  This purchase, the unit installed fine but flow is restricted by about half, best guess.  I removed (checking for blockage), drained and reinstalled - something I've never had to do before, with no increase in flow.  I'm going to purchase another one tomorrow and replace since I've never had this issue and don't know the seller.  Recommend looking somewhere else for this unit.