Mikey
Aspiring Old Fart, EE, computer & networking geek
Been there, read that. Still excited, but I am going to install a tempering valve in the HW line to the bathrooms.
Yup, as I said, adding H202 (or bleach) gets old after a while. The biggest annoyance was taking down the cartridge (which was full of water, of course). Something like the Rusco, with a bottom drain, makes it a lot easier. A new anode rod fixed it for me permanently, but the nigh-temperature water is icing on the cake.
What's the point of the valve at the water heater? If I were plumbing a new house, I'd recirculate at 160° and put the ASSE devices downstream at each fixture.To do it right the water heater should be set at 160 with a tempering valve also set at 160. Then every fixture served should have an asse 1070 device installed at the point of use because legionella can hid in the piping itself.
Didn't know that; thanks. Pretty sorry design. But then, as you say, plumbing ain't rocket science...you need consistent temperature for the point of use valves.
Why the outlet? Wouldn't the H2O2 (or bleach) only treat the upper stratum of the water? Injecting it via the inlet, it starts out at the bottom, close to all the accumulated crud where the bacteria live, and rises with water flow and convective currents....H2O2 added to the OUTLET of a water heater...
Disinfecting the outlet only is a really bad idea and draining the heater and flushing it leave more than enough sediment in the tank to prevent any benefit from doing it because the drain valve is on the side of the tank a couple inches above the bottom of the tank but, IRB lives on the inside of the heater and especially on the anode rod.A sufficient amount of H2O2 added to the OUTLET of a water heater and allowed to sit there overnight is much safer than turning up the heat. If you first flush off the bottom for several minutes, you will remove some of sediment that the bacteria can thrive in. This will solve the rotten egg odor 95% of the time and you won't void the water heater warranty by removing the anode rod (which rarely works). Hydrogen peroxide kills faster than bleach and when it breaks down, the second oxygen molecule comes off becoming water.
This is awkward, but...
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