When the siding or roofing doesn’t fit, or the pump doesn’t connect to the tank, it’s likely not the fault of anyone or anything you’re currently dealing with. It happened long ago and you have no recourse but to pay. The steel is out of plumb or off location. The shims are too high or low. The bolts were off. The pier was off. We are the QA/QC of every location of every item so you don’t get stuck with the bill.