Why does nobody talk about suction hose wear on the inside?
Spent 11 days this month chasing a slow production drop on the Mississippi, swapped filters, checked the pump, even pulled the impeller. Turned out the inside of my 6-inch suction hose was worn smooth and slick, losing almost 20% of my flow that whole time. Anyone else bother inspecting hose interiors regularly or is this just me being slow?