Hi John,
Appreciate the purchase of the Dometic 310 # DOM37FR; from time to time the ball gets knocked out of place and not seated properly, which is why it's leaking. So what you can try is to push the floor pedal down then reach in to realign the ball; hopefully it will then snap back into place. view full answer...
We don't have much in the way of ramp parts; of the things you mentioned, the only things we have are ramp springs for a 1-1/2" round shaft. If that's what your trailer has we have the Ramp Spring - 2K Torque for 1-1/2" Round Shaft - Left # RS16933LH and Right # RS16933RH. view full answer...