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domestic hot water re-circulation system design, pump head & capacity calculation, plumbing design - YouTube
![Have some questions regarding water heater/recirculation pump. Please educate me, I'm a plumbing newb. : r/Plumbing Have some questions regarding water heater/recirculation pump. Please educate me, I'm a plumbing newb. : r/Plumbing](https://preview.redd.it/yd4edgj0f2u71.jpg?width=3024&format=pjpg&auto=webp&s=c86a298e6a1956dc3f763cd83cfd249ae58d34da)
Have some questions regarding water heater/recirculation pump. Please educate me, I'm a plumbing newb. : r/Plumbing
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plumbing - Can someone explain to me how this hot water recirculating system works? - Home Improvement Stack Exchange
![plumbing - Can someone explain to me how this hot water recirculating system works? - Home Improvement Stack Exchange plumbing - Can someone explain to me how this hot water recirculating system works? - Home Improvement Stack Exchange](https://i.stack.imgur.com/FB3Xy.jpg)