Submitted 2 months ago by JordanZ@lemmy.world to [deleted]
I know others are saying otherwise, and they probably know more than me, but I find it incredibly weird for a pressure drain fitting to be on the supply side. Why would that be there? The pressure should never be getting that low there and even if it does, you don’t need a drain because the supply side should be buried deep enough that it doesn’t need draining for the winter anyway.
“king drains” or auto drains are common. A short nipple and either a brass cross-top or pvc ball valve would be better. Just be sure that it is accessible in the end.
They are typical as low-point drains and manifold drains, both on the main line (always charged). Don’t just cap it if that would make a dead end, especially if it’s sloped down to drain. I can’t tell very well from the picture, but if it’s on a tee you would be okay putting in a threaded cap.
If you’re blowing out the system, cap it back where it splits off so you don’t have a place for water to collect and freeze/burst. These things are nothing but trouble if you’re not an idiot and winterize correctly.
ZombiFrancis@sh.itjust.works 2 months ago
I think it depends on your definition of ‘okay thing to do.’ If you’ve never used it and only became aware of it once it failed: it has been functionally a fancy cap with extra parts. You can probably cap it without consequence.