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 drop in pressure
Author: boother (TX)

I just had a 20 gallon electric water heater replace and my pressure has dropped dramatically. The plumber ran 1/2" pex lines all the way to the heater. I believe that the lines previously were 3/4" for about 18" then went to 1/2". Is that the problem?

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 Re: drop in pressure
Author: packy (MA)

running pex to the heater is a big problem under my code.. must be metal pipes from the heater for 18 inches before transition to pex. what he did will not adversly affect the pressure.

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 Re: drop in pressure
Author: North Carolina Plumber (NC)

Our code recently changed and now we can run pex directly to an electric heater. There's likely some debris trapped in your distribution system that's affecting the volume. I'd start by checking the aerators and showerheads.

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