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Dead ends and Legionnaires?
We're currently doing a lot of repiping and have a few walls open.
While doing this I want to run a return for my domestic hot water from the second floor bathroom but it would just be a 10' long plugged 3/4" run of pex for a long time. Maybe forever.
It's just in case I ever get the time to do recirculating hot water and since it's in a wall now's the time to do it.
Is this asking for something really bad?
Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment