I had issues with the undersized pump and filter. I purchased the vevor 2hp single speed pump and the vevor 150 filter. I am re—plumbing the system with hard pvc and using flexible pvc for the hoses. So the existing male fitting are metric or just an odd size. I have most of it figured out with the exception to the male connector on the outlet pressure side where the hose from the filter connects and the hose fittings between the inlet and the pump. Can you suggest how to convert the fitting. Also using 1.5” pvc. Thank you