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Add expansion tank to my above-ground setup?

1534 Views 9 Replies 4 Participants Last post by  g-man
As much as I would love a true irrigation system, we probably won't be living in this house but a couple more years realistically. So I bought one of the Orbit B-Hyve wifi faucet timers a few weeks ago, and I really like it so far, but...

Every time it cuts on and off, it sounds like the world is coming to an end. I'm concerned with potential for plumbing malfunctions if I keep this up for too long. My dad had a pretty good theory that because my old setup had the timer at the actual sprinkler (I can't do this now because I'm using two sprinklers now), the hose was able to expand and absorb the shock when the water shut off. His idea was to add the smallest expansion tank I could find and hook it up between the faucet and timer.

I'm thinking about trying this one after I look and see how it actually connects and if it would even be possible. https://m.lowes.com/pd/Utilitech-2-Gallon-Expansion-Pressure-Tank/1038591

But before I do I just wanted to see if anyone else has run into this and had any other potential solutions.
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What if you just dug up a spot on your mainline before it enters your house and added a new faucet, and then hooked the wifi timer directly to that spot and then continued to run hose above ground to your locations as necessary?
ShaneNC said:
Ecks from Tex said:
What if you just dug up a spot on your mainline before it enters your house and added a new faucet, and then hooked the wifi timer directly to that spot and then continued to run hose above ground to your locations as necessary?
Wouldn't that cause the same shock to my plumbing? Currently I've got the timer hooked directly to the faucet and then a splitter to my sprinklers. If I understand what you're saying, I would basically have this exact same setup but it is would essentially be like just using a different faucet.
The faucet the timer is on is likely at the end of your house's water lines, meaning the pressure builds up prior to the faucet and impacts appliances in the house.

If you really think it's a problem, the correct way to fix it is to install a pressure regulator valve on the house main.

But one way to fix might be to pull irrigation water off the main prior to the house, as it would in theory lessen the immediate impact of the pressure change on the house lateral lines going to appliances and fixtures because the pressure would have to distribute over the entire system instead of already being distributed at the point of shut-off

You should measure your house main pressure - or turn off all water and measure pressure at the hose spigot to see what is going on

Copper lines in the house make noise, so it could be that your pressure is fine and the lines are just noisy.
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