hot water recirculation

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  1. AidanDanner

    Strange Problem with Hot-Water Recirculating System

    I'm totally stumped here, hoping someone can help. When we moved into our 1954-construction home about ten years ago, we had a copper re-pipe done, and also a hot-water re-circulation system installed. It's been working great, until about six months ago, when I began to notice that the water...