Smart Plug for Hot Water Recirculation Pump
The previous post described how a hot water recirculation pump solved a problem with a shower that took a long time to get hot water.
One problem that was mentioned is that the included dial timer to control the pump was prone to problems of getting out of synch if there is a power outage and the dial stops turning. Also the settings of the dial timer aren’t real accurate given that they are in 15-minute increments: