Re: Water pressure drop using PEX plumbing

Author	All Replies
macsierra Baby Newfoundland Premium join:2003-11-30 Minden, NV Reviews: ·Charter	reply to boaterbob Re: Water pressure drop using PEX plumbing said by boaterbob: I seem to recall that I didn't have this problem when the house was new - but then the builder's plumber came to do some warranty work….. Any thoughts? Thanks Robert As others have said I be looking real hard at the screen and pressure regulator……. -- Early 2009 Mac Pro 10.6.4 Charter 10 meg Windows 7 & Mac OSX working simultaneously with VMware Fusion 3.0.1 Elect anyone BUTT Harry Reid!
	to forum · permalink · 2012-05-09 10:34:01 ·
iknow_t join:2012-05-03	said by macsierra: said by boaterbob: I seem to recall that I didn't have this problem when the house was new - but then the builder's plumber came to do some warranty work….. Any thoughts? Thanks Robert As others have said I be looking real hard at the screen and pressure regulator……. so the plumber? changed out the 3/4" lines for 1/2" lines, because he's a "builders plumber" not a licensed one, and didn't know any better?. real plumbers are better.
	to forum · permalink · 2012-05-09 19:52:28 ·
robbin Premium,MVM join:2000-09-21 Leander, TX kudos:1	You should research installation methods for PEX, specifically using a manifold. The OP has described a proper install as far as I can tell.
	to forum · permalink · 2012-05-09 19:55:49 ·
iknow_t join:2012-05-03	said by robbin: You should research installation methods for PEX, specifically using a manifold. The OP has described a proper install as far as I can tell. if it's not done as I and 2 other posters pointed out, then it's not done right, but truly, as you mentioned, those doing it wrong could have looked at websites with improper info on them, BUT, there aren't any that show diagrams of proper manifold plumbing!. even descriptions of proper sizing!. 1/2" manifolds haven't been used since the 70's, and even when they were used, that was done on the el-cheapo houses!. and people wondered why they lost most of the pressure in their showers if a toilet was flushed, or a sink, or just about any other water was used.
	to forum · permalink · 2012-05-09 20:55:26 ·
robbin Premium,MVM join:2000-09-21 Leander, TX kudos:1	said by iknow_t: if it's not done as I and 2 other posters pointed out, then it's not done right, but truly, as you mentioned, those doing it wrong could have looked at websites with improper info on them, BUT, there aren't any that show diagrams of proper manifold plumbing!. even descriptions of proper sizing!. 1/2" manifolds haven't been used since the 70's Seriously? Here are a few installation PDFs which do show diagrams etc. with 3/4" supply and 1/2" homeruns. Nibco Zurn Sioux Chief I could post more but what's the point. Sorry, but just because you and 1 or 2 other posters posted something does not make it right. »www.make-my-own-house.com/diy-ba···ing.html
	to forum · permalink · 2012-05-10 04:39:34 ·
boaterbob join:2005-08-01 Moncks Corner, SC	»www.apollovalves.com/_products/3···_36c.jpg So, I may as well go ahead with the stainless screen/strainer cleaning. Having not done this before, it seems all I do is undo the nut using a 1 1/2" hex drive and the screen should easily come out (I don't see any other parts/items that should also fall out). So, wash the screen and put it back in and put the large nut back in - no gaskets/o-rings that I see - how about any thread sealer?? Thanks
	to forum · permalink · 2012-05-10 14:17:55 ·
iknow_t join:2012-05-03	reply to robbin said by robbin: said by iknow_t: if it's not done as I and 2 other posters pointed out, then it's not done right, but truly, as you mentioned, those doing it wrong could have looked at websites with improper info on them, BUT, there aren't any that show diagrams of proper manifold plumbing!. even descriptions of proper sizing!. 1/2" manifolds haven't been used since the 70's Seriously? Here are a few installation PDFs which do show diagrams etc. with 3/4" supply and 1/2" homeruns. I could post more but what's the point. Sorry, but just because you and 1 or 2 other posters posted something does not make it right. »www.make-my-own-house.com/diy-ba···ing.html good, you found manifolds, but as i mentioned, it's using 3/4" supply lines, with 1/2" branches off it, just like a proper copper pipe installation, except with copper the supply lines were extended near the last fixture. the OP does NOT have 3/4" supply lines, as he said inside it's ALL 1/2", so that's not proper!.
	to forum · permalink · 2012-05-10 16:13:37 ·
robbin Premium,MVM join:2000-09-21 Leander, TX kudos:1	Sure sounds like 3/4" supply to me. said by boaterbob: I have 3/4" PEX coming from the water main, thru a Watts 3/4 in. Cast-Bronze Pressure-Reducing Valve, thru a ball valve whole house shut off and continuing to my water heater.
	to forum · permalink · 2012-05-10 16:22:45 ·

iknow_t join:2012-05-03	said by robbin: Sure sounds like 3/4" supply to me. said by boaterbob: I have 3/4" PEX coming from the water main, thru a Watts 3/4 in. Cast-Bronze Pressure-Reducing Valve, thru a ball valve whole house shut off and continuing to my water heater. but "Inside the house I have 1'2" PEX." so right there is a contradiction. if he has 1/2" feeding his manifold, that could cause this very problem.
	to forum · permalink · 2012-05-10 16:41:58 ·
PSWired join:2006-03-26 Annapolis, MD	OP says the problem did not exist when new. If that's the case, a clogged screen in the pressure regulator, or some other problem with the regulator, is much more likely to be the root cause here than pipe sizing.
	to forum · permalink · 2012-05-10 17:03:36 ·

Technical > Home Improvement > Water pressure drop using PEX plumbing