2008年7月31日 · PEX fittings cannot be used with polybutylene. There is a transition coupling that has both a PB and PEX end as well as two different crimp rings. Again, the wall thickness of the PEX crimp is heavier, and the thinner version of the copper ring is for PB.

2013年2月7日 · Pex won't typically split if it freezes, but fittings can. Remember, insulation doesn't create heat, it just traps it. If there isn't any, the pipe will still freeze. 3/4" pex is about the same ID as 1/2" copper, so yes, I'd run 3/4" pex to the bathroom group. The tub, I'd convert 3/4" to the likely 1/2" valve you have.

2009年5月7日 · I am replacing my galv with pex from the point of entry in the house. The water line enters the basement and after a new shut off valve goes the pex. My gas line is jumpered to the old water line which connects to an old drain line and finally the panel. Service is 200 amp and has a couple groundiing electrodes outside.

2009年1月27日 · I ran copper to a set of valves and used sharkbites to connect the pex. A nice sweep into the wall up about 20" to a copper 90 and out to the sink shutoffs. I put insulation between the outside wall and the pex. I figured PEX would hold up to freezing better than copper, since the pex will flex and the copper won't.

2012年4月17日 · if you want it to be rock solid like traditional copper terminate the pex with an drop eared elbow fastened to an backer board and stub out with an nipple and an threaded angle stop.just be sure to use some teflon tape and some good pipe dope.two brands that are good are hercules blue block or loctite

2014年7月28日 · Let's now say that there is 70 PSI at the meter rather than at the manifold. Now, with 1 faucet on, we will get 0.388 PSI drop in the 3/4 PEX which adds to the drop at the faucet. With the 3 faucets open, we will get 2.4715 PSI drop in the 3/4 PEX for a resulting pressure at each faucet of 70 - 2.4715 - 24.44 PSI which is 43.0885 PSI at each ...

2021年1月4日 · Brand of PEX in Home - ZURN PEX Good afternoon - really looking for some help and advice. I have scoured the forums and have read and seen comments on NIBCO and other brands but not ZURN. I have had three inline splits and leaks within the last 60-days. All have been on the hot water red PEX. Two were within 10-15 feet of each other.

2006年1月23日 · I have read many discussions regarding Pex and just wante to let you know our problem. Please keep in mind, my house is only 2 years old and is 4,500 sq. ft. located in Southern California. Friday night, we found a lot of water leaking from our 2nd floor to our first, soaking our ceiling, walls...

2024年12月26日 · PEX-A is a solid choice for hot water systems. The expansion tool is necessary because PEX-A connections rely on expanding the tubing to insert the fitting. As the tube contracts, it creates a strong seal without needing crimp rings. Compression fittings are another option, but they’re not as secure as the expansion method.

2024年11月18日 · I need some advice on sizing pex pipe on a dedicated hot water loop I am installing in my home. It is a 2,400 SF single story ranch home. The basement is unfinished and I am running the lines in the basement ceiling before I finish the area. A sketch of my initial plan is included. Distance from water heater to farthest fixture is approximately ...