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Wisconsin | If there's not an elevation difference, then there could be a different set of fittings between the two, or one pipe could be kinked, or there could be a chunk of something blocking one pipe, or one of the hydrants could be defective or set up wrong, or there could be a leak.
You'd see it on the bill if there's a leak big enough to change the pressure, but it doesn't hurt to check the static pressure at each hydrant, with no water running, then the pressure with a lot of water running.
If you don't see any change with checking the adjustment, you could try back flushing the hydrants and line if you can get access closer to the source to open up the plumbing, probably not much fun if it's all buried.
If the difference is only when they're both running, it could be the one on the side of a t gets less pressure due to the flow and the one that feeds straight through the t gets better pressure when they're both flowing. I wouldn't think a 1" t would be a restriction, but maybe they screwed up and used a 3/4" tee with 3/4 to 1" hose barbs in order to fit the hydrant? that could do it.
Edited by junk fun 9/8/2023 00:38
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Woodford hydrant
