I guess I should clarify the trailer. It has a black water/gray water dump in front of the axles, and another gray water dump behind the axles because it has a rear kitchen.
So if i go with the adj water regulator, what is a max pressure I should see or adjust to? I assume there must be some pressure where you can back feed your internal water tank by overpowering the onboard pump right? Seems that would be a problem.
You convinced me on the surge, we were planning on the PI system but wanted some confirmation it was a must.