Recirculating Hot Water - Design & Build

Recirculating Hot Water Design saves Water
Water system design that has recirculating hot water that gives virtually instant hot water to the furthest bathroom and kitchen. The video goes into depth on the design and the implemented layout of the recirculating system. At the end it has pricing for each component and recommended purchase items.
Website for recirculating hot water design and parts list: www.tomtepster.com
Below are the items listed in the video and where you can purchase them:
1. Grundfos UP15-42F Recirculation pump: amzn.to/3XSqF2
2. Grundfos 519601 Cast Iron Flange Set: amzn.to/3XV4JE3
3. Grundfos 595444 Aquastat Control: amzn.to/3ZcdxXl
4. Watts 2.1 gallon expansion Tank: amzn.to/3kk711Q
5. EASTMAN 86288 Tank Bracket: amzn.to/3EwGtRN
6. Brass In-Line Check Valve, 3/4 Inch: amzn.to/3kj6q0k
7. Red PEX-B piping return hot water only: amzn.to/3lVzlbk
8. Fitting/Nipples Brass/Copper: amzn.to/3SklUOk
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[@bormorzx]

State MA. We can’t use black cast iron reciculation pump for potable water. Only brass or stainless steel pumps.

[@dangda-ww7de]

YOUr air tank is upside down, the expansion tank is upside down when u look at the lable its also upside down. They want you to install it with the water on top of the tank.

[@tepsterstips]

Thank you for commenting on possible issues. The manufacturer instructions allows it. The diagram showing installation for the tank says it can be installed both ways: vertically on top of the water pipe or vertically below. Is there something I am missing?

[@dangda-ww7de]

@@tepsterstips Any position is fine but they want you to install it with the water on top.