I learned today that PVC degrades in sunlight (with UV exposure). UV exposure will, over time, cause the impact strength of PVC to diminish. I read that it can also cause some discoloration on the surface of the PVC plumbing as well, such as light brown spots or streaks.
I know a lot of you guys are using standard white Sch 40 PVC for buffer tank drains and ball valves. @Steve is the one that pops into mind first because I was just looking at his trailer video yesterday.
Have you guys noticed any degrading of your PVC plumbing at all? If yes, can you describe it? If not, how long have you had it on your open trailer and exposed to sunlight without any adverse effects?
I understand it’s probably not a big deal. I just want to know about it actually happening or not and if anyone has had any trouble.
I’m asking because I’m looking at all PVC parts for the DIY chemical metering system and the recent discussion has been whether or not to cover it by placing it in an enclosure or leave it open and exposed, no enclosure. I want to figure out if all the parts being exposed to sunlight (UV) all the time would have a negative impact on the metering system components or not. If it could cause damage, I’d like to look at putting it in an enclosure to ensure longevity. If it doesn’t really cause damage, I’d like to leave it exposed.
Right, but I’m going to apply it to a few hundred dollars worth of chemical metering components. If I build a metering system for $400, I don’t want it to degrade and need replaced in a few years because of UV exposure if I could prevent it just by keeping sunlight off of it.
