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I have not contacted manufacturers. I don't remember the brand of the first two water heaters that were installed in 2018 a year prior to my purchase. They were both replaced in 2022 several months apart, one with a Ruud the other an AO Smith from plumbing supply houses. Both failed in June...

Electrician did find a very low level current or voltage on one of the heaters, but he did not think it was significant. He added additional grounds to both heaters.

The powered anodes used were Corro-Protec. They are short, I measured 8 inches from bottom of thread to tip of anode. Plastic water heater pans were installed on the tank replacements 6 months ago. Tanks with magnesium anodes lasted 3-4 years. Tanks with powered anode lasted 6 months on one...

The only water sample I had lab tested was the from the softener out, before the water heater with a pH of 8.1. Using a pool test kit the city water in pH was 7.8 and at the softener out was the same, 7.8.

pH coming out of softener is 8.1. The reason I need a softener is because the city water is very hard, measured at 22 gpg. Water that hard causes problems with water heater, appliances, plumbing fixtures and leaves hard water deposits on anything it lands on. Forget washing vehicles, they...

I looked further and found a ground screw and copper wire at top of A.O.Smith tank underneath a cover. The ground wire goes into the main conduit. I also found a ground wire fastened to the softener inlet line and outlet line, so the system should be grounded to the main.

Mark, thank you very much for your input. I set the pump timers after the last new tank installation. I set them to run during peak use times, around 4 hours in the am and 4 hours in the pm. The latest two tanks both came from plumbing supply houses. One is an A.O.Smith and the other is a...

Hot Water heater problem Background: House purchased in 2019. Two electric hot water heaters, one on east and one on west side of house. Both were installed in 2018. In 2021 we had a plumber install Grundfos recirculation pumps together with valving on far end of water runs to allow for...