jodil Posted April 30, 2008 Report Share Posted April 30, 2008 This red pipe is for the hot water line coming off the water heater then goes under the house. What kind of material is this? I wasnt aware of any kind of "plastic like" material that is safe for hot water supply.. But what the heck do I know.. Image Insert: 41.29 KB Link to comment Share on other sites More sharing options...
John Dirks Jr Posted April 30, 2008 Report Share Posted April 30, 2008 It's PEX. http://www.ipexinc.com/Publication/Kios ... %20pex.pdf CPVC is also a plastic type material that is suitable for hot water lines. CPVC is cream colored, not to be confused with PVC which is white in color. PVC is ok for a cold water line but not a hot one. Link to comment Share on other sites More sharing options...
Richard Stanley Posted April 30, 2008 Report Share Posted April 30, 2008 Pex? If it is Zurn (Qpex) - there is some litigation underway for some of it. If you can get the MFG name (I cant read it), check their web site or check with local plumbing supply house. Sorry, John - we posted about same time. Is that reduced pvc on the TP valve? Link to comment Share on other sites More sharing options...
Brian G Posted April 30, 2008 Report Share Posted April 30, 2008 What is that on the relief valve? It looks white, like PVC, which as John noted, is not kosher for that use (gotta be hot water rated). Brian G. Ya, Just Look at My Big Pex [:-magnify Link to comment Share on other sites More sharing options...
Jim Katen Posted May 1, 2008 Report Share Posted May 1, 2008 Originally posted by Brian G What is that on the relief valve? It looks white, like PVC, which as John noted, is not kosher for that use (gotta be hot water rated). Brian G. Ya, Just Look at My Big Pex [:-magnify That's a special, fancy dedicated TPR discharge tube. I see them all the time on manufactured home water heaters. They come with the galvanized fitting at one end. Jodi, PEX is the standard plumbing pipe in new construction out here. Has been for quite some time. It works great. Image Insert: 40.2 KB Image Insert: 33.93 KB - Jim Katen, Oregon Link to comment Share on other sites More sharing options...
John Dirks Jr Posted May 1, 2008 Report Share Posted May 1, 2008 Jodi, In the first picture Jim posted above you can see an example of the cream colored CPVC on the left side of the picture. Link to comment Share on other sites More sharing options...
Erby Posted May 1, 2008 Report Share Posted May 1, 2008 John, "PVC is ok for a cold water". You might want to doublecheck your reference. Quite a few places won't allow PVC for any potable water lines inside the residence. Link to comment Share on other sites More sharing options...
Brian G Posted May 1, 2008 Report Share Posted May 1, 2008 Originally posted by Jim Katen That's a special, fancy dedicated TPR discharge tube. I see them all the time on manufactured home water heaters. They come with the galvanized fitting at one end. All-righty then, thanks. Never seen one of those, but then the few calls I've ever had for inspections on manufactured houses all evaporated. Brian G. They Are What They Are [8] Link to comment Share on other sites More sharing options...
hausdok Posted May 1, 2008 Report Share Posted May 1, 2008 Hi Erby, I think that's true, but aren't you just telling John to check with his local AHJ? Isn't the prohibition against PVC for all potable water an individual jurisdiction issue? I don't think there's any actual model code restriction against it for cold water. "Quite a few places," could mean a few hundred out of many thousands of jurisdications in the country that do allow it. ONE TEAM - ONE FIGHT!!! Mike Link to comment Share on other sites More sharing options...
hausdok Posted May 1, 2008 Report Share Posted May 1, 2008 Originally posted by Brian G Originally posted by Jim Katen That's a special, fancy dedicated TPR discharge tube. I see them all the time on manufactured home water heaters. They come with the galvanized fitting at one end. All-righty then, thanks. Never seen one of those, but then the few calls I've ever had for inspections on manufactured houses all evaporated. Brian G. They Are What They Are [8] Yeah, I saw my first one on a brand new water heater in a conventional home not too long ago. It was labeled for that use so I didn't make a big deal about it. IAPMO is a whole lot bigger than my pipsqueak little butt. ONE TEAM - ONE FIGHT!!! Mike Link to comment Share on other sites More sharing options...
Les Posted May 1, 2008 Report Share Posted May 1, 2008 Color coding for wheather it is pvc, cpvc, abs, pex, etc is not kosher. It is possible for it to be any color. 99% of t&p discharge pipe here is as shown. Link to comment Share on other sites More sharing options...
Jim Katen Posted May 1, 2008 Report Share Posted May 1, 2008 Originally posted by hausdok Hi Erby, I think that's true, but aren't you just telling John to check with his local AHJ? Isn't the prohibition against PVC for all potable water an individual jurisdiction issue? I don't think there's any actual model code restriction against it for cold water. "Quite a few places," could mean a few hundred out of many thousands of jurisdications in the country that do allow it. ONE TEAM - ONE FIGHT!!! Mike The IRC does not recognize PVC as an acceptable water distribution piping material. Check out IRC 2006 P2904.5 and Table P2904.5. PVC doesn't meet the required standards. It hasn't for a long time. If you're in an IRC area, PVC isn't allowed for water distribution inside a building unless there's a local ammendment. - Jim Katen, Oregon Link to comment Share on other sites More sharing options...
hausdok Posted May 1, 2008 Report Share Posted May 1, 2008 Hi Jim, Thanks, I stand corrected. It wouldn't make much of a difference here anyway, I think I've seen, maybe, two houses plumbed with CPVC in the past 12 years. Both were DIY jobs. OT - OF!!! M. Link to comment Share on other sites More sharing options...
Brian G Posted May 1, 2008 Report Share Posted May 1, 2008 This may be a silly question, but..... Does "inside a building" include the crawl space? I had one recently with a mix of PVC and the old galvanized steel running around under the house, but only the galvanized went through the floor. Brian G. I'm Guessing "Yes", But I'm Guessing [?] Link to comment Share on other sites More sharing options...
John Dirks Jr Posted May 2, 2008 Report Share Posted May 2, 2008 < making note to self about questioning PVC being used as supply lines on either hot or cold side. Thanks for correcting me. Link to comment Share on other sites More sharing options...
Jim Katen Posted May 2, 2008 Report Share Posted May 2, 2008 Originally posted by Brian G This may be a silly question, but..... Does "inside a building" include the crawl space? I had one recently with a mix of PVC and the old galvanized steel running around under the house, but only the galvanized went through the floor. Brian G. I'm Guessing "Yes", But I'm Guessing [?] Around here, you can't even have PVC under the soil in the crawlspace. No PVC beneath the footprint of the building at all. - Jim Katen, Oregon Link to comment Share on other sites More sharing options...
Jim Katen Posted May 2, 2008 Report Share Posted May 2, 2008 Originally posted by AHI < making note to self about questioning PVC being used as supply lines on either hot or cold side. Thanks for correcting me. Just because I know you'd want to know . . . PVC is fine for supply lines. They're outside the building. It's distribution lines that are the issue. Most people won't make the distinction, but there's always one . . . - Jim Katen, Oregon Link to comment Share on other sites More sharing options...
RobFV Posted May 2, 2008 Report Share Posted May 2, 2008 Originally posted by Jim Katen Originally posted by Brian G What is that on the relief valve? It looks white, like PVC, which as John noted, is not kosher for that use (gotta be hot water rated). Brian G. Ya, Just Look at My Big Pex [:-magnify That's a special, fancy dedicated TPR discharge tube. I see them all the time on manufactured home water heaters. They come with the galvanized fitting at one end. Jodi, PEX is the standard plumbing pipe in new construction out here. Has been for quite some time. It works great. Image Insert: 40.2 KB Image Insert: 33.93 KB - Jim Katen, Oregon It appears that the end of the TRP tube is blocked by some insulation material Link to comment Share on other sites More sharing options...
Jim Katen Posted May 2, 2008 Report Share Posted May 2, 2008 Originally posted by RobFV It appears that the end of the TRP tube is blocked by some insulation material Indeed, it appears that way. But appearances can be deceptive. The tube passes through the floor to the underside of the MH. The foam is sealing the annular opening around the tube. - Jim Katen, Oregon Link to comment Share on other sites More sharing options...
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