Need help with Boxxer421 Chem pump

[tman7]

At least thats my guess as to whats happening. While the pump will prime, it wont feed chemical while cleaning. I took off the highpressure fitting on the pump to see if there was any pressure, initially a small amount was sputtering out and now after messing with it for awhile I get nothing. Do I need a rebuild kit or could something else be going on? Thanks



UPDATE:

Turned out to be the chem pump diaphragm. Not uncommon apparantly.