
Trying to add a hammer arrestor to my irrigation system
Let me preface this by saying that I know I’m an idiot.
Every valve in my sprinkler system causes water hammer that jostles the crap out of my backflow arrestor and it causes issue with unions for a flow sensor installed downstream. I cut the pipe going into the tee for the first valve box (there are two more right behind it) and added another tee going into a class C hammer arrestor. I then reconnected it to the supply with two 45s instead of a 90 and a straight coupling, mostly because a 90 would’ve been a tighter fit in that spot.
This setup doesn’t seem to help. I was trying to set this up so I didn’t bring anything any closer to the foundation and I wanted to be able to put a valve box in to protect the threaded connections and allow for easier replacement if it ever needs to be done. I’m wondering if this is just a bad design, if I need to spring for something like a Spears tee to avoid having fittings, or something else entirely.
Any suggestions or advice would be appreciated.