Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Plumbing

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 09-03-2011, 12:38 AM   #1
Newbie
 
Join Date: Sep 2011
Posts: 1
Share |
Default

Hot water pressure problem (unusual situation)


Hello,

Mine is 5Y old house with public water supply in California, 50G gas water heater tank and copper piping. Cold water pressure is very good, but hot water pressure is very low at all points. Flushed the hot water tank, still problem remains.

Did some trial and error method and found a strange situation. Normally, hot water pressure is very low, but hot water pressure increases considerably in first tap, when second tap is on with both hot and cold water mixed. Even observed that hot water in bathrooms increases when cold water is on in the kitchen.

Can some one explain the cause of the problem.

Thanks in advance.


Last edited by tanna; 09-03-2011 at 01:00 AM.
tanna is offline   Reply With Quote
Old 09-03-2011, 06:48 AM   #2
DIY staff
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 21,131
Default

Hot water pressure problem (unusual situation)


What kind of shut off valve protects the heater---gate valve or ball valve?

__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is online now   Reply With Quote
Old 09-03-2011, 08:17 AM   #3
Member
 
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 6,838
Default

Hot water pressure problem (unusual situation)


Quote:
Originally Posted by tanna View Post
Hello,
Did some trial and error method and found a strange situation. Normally, hot water pressure is very low, but hot water pressure increases considerably in first tap, when second tap is on with both hot and cold water mixed. Even observed that hot water in bathrooms increases when cold water is on in the kitchen. e.
Probably some constriction in the hot water piping prior to the tap where you mixed cold and hot. Or maybe in the cold inlet to the water heater.

You are getting improved pressure because the cold water from the hot and cold mixed fixture is backfeeding to the hot water lines and adding to the pressure.

Could be sediment hung up in the piping, just before the cold water inlet shutoff to the water heater is a likely location.

Try this. Turn off all the upstairs faucets but leave the main house water valve and the water heater cold inlet valve open. Open the water heater drain valve. Is this slow also?
__________________
Stop wasting time re-adjusting the pattern. Have several lawn sprinklers, one for each pattern.
AllanJ is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Well Water, Fluctuating Water Pressure, and the Roller Coaster Pressure Gauge huuuss Plumbing 24 12-11-2011 09:03 PM
Lost Hot water pressure brile Plumbing 11 11-28-2010 02:59 PM
Well Water System Problem browning Electrical 6 09-12-2010 06:14 PM
Water pressure and temperature billvasko Plumbing 9 06-02-2008 09:23 AM
water pressure problem krw1957 Plumbing 1 12-10-2007 10:34 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.