[Rbgolf01]

Attachment 1On a recent visit, they noted that the changeover vale had white crusty stuff on it, as shown in the attached picture. They say this means they need to replace the water pump. Is this a correct assessment. Are these related and need to be done . It seems to be the same today as weeks ago. We have had no overheating issues or leaks under the engine or excessive antifreeze odors. This appeara to minor amd an old small seepege that has self sealed if leaking at all. Attachment 1