During this visit, the homeowner expressed concerns regarding increased sediment and water hammer since the previous visit on 1/2. Upon inspection, the washing machine inlet screens were found to be heavily clogged with both larger sediment particles as well as fine silt and iron. We discussed that this condition is likely related to the prior system issue involving the absence of a check valve and stagnant water within the system. The homeowner also reported that the washing machine was displaying error codes each time the well pump cycled. After attempting to recreate the reported water hammer, we confirmed that the banging noise occurs at pump startup when the pressure tank cycles. This is likely caused by a vacuum forming in the well line ahead of the newly installed check valve; when the pump starts, the sudden pressure change is transmitted throughout the water lines. We reviewed the newly identified system issues and discussed reworking the water lines so the pressure tank ser
