Performed plumbing maintenance for customer. Customer was concerned with the pop up assembly on the right side of the sink. Was unable to get pop up assembly to engage. Will need to replace pop up assembly. Also tub shoe no longer can hold stopper. Tub shoe needs to be replaced. Informed customer we can try and replace tub shoe but there’s always a chance that waste & overflow can break and may need to replace it at the same time. Also helped customer break up salt bridging for their water treatment system we installed.