I have an irrigation system that's about 7 years old. I started to notice that some of my sprinkers' (MP Rotators) are either not rotating or doing so at an extremely slow rate. I've done several steps in attempting to resolve the problem but with no success. Hoping someone has further guidance for me.
Steps I've taken:
First I cleaned each filter within the spray heads to ensure there was no clog. No luck. Then I bought a pressure gauge and discovered that my spray heads are anywhere from 60 to 80 psi. The spray bodies are basic Orbitz brand, so I started replacing them with pressure regulating spray bodies from Hunter. I've verified the pressure is now around 38 psi.
Despite all this, the rotation problem persists. I've run out of ideas. I still haven't replaced all the spray bodies yet, so wasn't sure if I need to get an entire zone on pressure regulated spray bodies before I see a change?
Update: Adding photos. Also realized the old spray body isn't Orbitz but...I think Rainbird?
Old and new spray bodies
Filter and in the ground
In action. Streams look good, they just aren't rotating.