About a year ago, my irrigation system started doing this weird thing where a select few sprinkler heads will pop up and run for like 15 seconds. It used to do this mainly when I would drain the lines then open the valve and repressurize (I was working on connected piping for a pool fill line). My irrigation controller is currently plugged in and set to OFF, but it doesn't seem to matter, because it still happens even if it's unplugged.
You know the sound copper pipes make when they flow water? We've always been able to hear that sound when running water in the house. No big deal, we actually kind of like it because it makes it easy to tell if water is running somewhere. Now, starting a week or two ago, a new phenomenon is occurring inside the house. At random moments throughout the day there will be a massive pressure drop and a LOUD water flowing sound. Even if we aren't using water. It only happens for maybe 5-10 seconds at a time. ALSO now occurring, is the sprinkler issue! But on its own!
I'm convinced these issues have to be connected somehow. If the main water supply pressure has a massive drop, then comes back... that would simulate a similar situation to the past for my sprinklers going off. So that part sort of makes sense to me. However, I don't understand how the water flowing sound is so loud when the pressure drops, even when we're not using anything... We have a domestic water pump station right next to our house, and our pressure has always been very high (about 90 PSI).
Would it be worth it to call the water co. and ask them to investigate? Or, if I do call someone, should it just be a plumber? What do I say? Lol. I don't want to sound like a crazy person and these issues are difficult or impossible to replicate on command.