During walk though, I had my client point out and ask if the use of the red pex piping at the irrigation backflow preventer is acceptable repair from a plumber, or if this is a sign of DIY. I wasn’t sure, so hoping to get feedback from you all…and for some reason I’m not seeing how to insert a picture into this message.
First, it’s a non-issue.
Second, is it operating as intended? Since you didn’t specify, I’ll assume yes it was, thus, a non-issue.
It’s most likely that someone had red piping left so that’s what they used.
No plumber I ever worked with would do that, but I didn’t work with numbskulls. I’ve seen some full time plumber doofuses that would do completely “code legal” things that would make you question their sanity.
All that aside, there is no issue here if it’s working, so not much to worry about.
To be clear… unless mandated by your local AHJ… this is NOT a code issue!
Should be a non-issue, depending on the location it’s located on the property. If it’s in an area where it might be subject to mechanical damage, from say a weed eater, then not such a good idea.
In my area I’ve only seen copper pipes at the backflow preventer, but YMMV.
I agree, and yes, it was functioning as intended, which I pointed out to the client.
I’ve only ever seen copper as well but know that pex is becoming more common and more likely for plumbers or DIYers to have it on hand (copper is still pricey). I did a Google search and see info saying that pex is not recommended for use outside use as it can weaken from UV light exposure. I think the client was more concerned about if this was “professional plumbing standard practice” or the possible substandard work from homeowner DIY.