GrandpaSmurf825
Bronze Member
As big of a pain as it would be, I would be tempted personally to plumb everything back as it originally was and verify speed and power of the backhoe. Then presuming all is well again, one step at a time start going through the plumbing once again. However, you are saying the lines for the 3rd valve are 1/4" or #4 but the lines they are replacing are much larger? As in a 3/8" or 1/2" #6 or #8? That has me thinking there is a plumbing issue, either with flow being restricted or flow not being restricted as required and pressure is low. Being able to plumb or tee a gauge in would be quite helpful to see what you had for pressure before and now afterwards. Just thinking out loud here