poor pressure

Hello, I have a sta rite mpra6e-147l pump and recently I do not get any pressure on my farthest return. If I plug the others the pressure is there so it isn’t clogged and I replaced the filters last year. New pump? Also, would I need a whole new pump or just motor? any help would be appreciated.

Good afternoon. It may be that the filter cartridge is beginning to go bad. It may need to be deep cleaned with a soak a few hours to over night or replaced. I would test the system with no cartridge inside. If the water pressure returns to the jets then you know it was the cartridge. If you have a D.E. filter then I would test the flow by placing the multiport valve in the recirculate position. Here is another guide that may assist as well. How Do I Correct Low Water Pressure?