I need to replace an outdoor water spigot that is going to to attach to a PEX pipe branch and trunk system. My question is how do I make sure that the spigot is in securely. In copper run systems when you twist the spigot you get a bit of extra support from the copper, pex won't offer that.. Do you just screw the spigot into the house.. ( what about my siding ) or is there a backer nut for the spigot ?

Thanks.

This is pretty much the same problem you run into with Shark or Gator bite fittings. Use a hose bib that has an exterior flange with cut out indents on the side. That way you can screw the bib to the house. If you have bevel siding, some people flip a small piece of siding upside down and you get a level mounting place. Use Stainless Steel or Brass screws.

Hi Johncat...

Are you installing an anti.-freeze outside faucet? If so, and I do recommend them, make sure that the outside faucet pitches downward so it can drain by gravity to the outside by itself... it is one of the reasons these anti.-freeze units don't freeze up. The only thing to remember with the anti.-freeze outside faucets is that you can't leave a hose attached on the faucet during the winter... can freeze up the hose and freeze the faucet/pipe. Otherwise, you can leave the outside faucet on year 'round... ;)

If this is a regular outside faucet make sure it pitches back in toward the shutoff so you can pull the drain cap from the shutoff and winterize the outside faucet every year for best protection each year.

As Ma0641 suggested either one should work fine as long as you have holes/indents in the flange to screw through. One thing that helps in screwing these into the house is to remove the handle... lets you angle the screws more into the house, OK?

Good luck...

Mark

I'm too cheap to buy anti-freeze spigots so just open them in the fall.
You can print out 11 pages of fittings from a search of the word Pex, complete with pictures and prices, from Home Depot. Everything you need.
It seems that all pex related crimp rings are not the same though, and the small lumberyard near me sells a brand that requires a different tool.

I live in northern Illinois and use the frost proof spigots all of the time. I too have had 2 fail because I forgot to disconnect a hose before winter. John, wher do you live, maybe we should know that before we make too many recommendations.