Pressure Dazed - Plumbing - DIY Home Improvement | DIYChatroom


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

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

Reply
 
Thread Tools Display Modes
Old 03-11-2009, 11:45 PM   #1
Member
 
Join Date: Feb 2009
Posts: 165
Rewards Points: 150
Default

pressure dazed


I placed a pressure regulator on my water line -main incoming- and a expansion tank on cold side water heater..i set psi on regulator at 65(so i thought) and set expansion tank at 60...I did 2 loads of laundry and the pressure was checked (30 min later) and WOW--it hit 110 psi!both needles...is there too much pressure in my expansion tank?-was pre-set at 40 i set to 60 as told bt watts to....(thermal expansion should not exceed that 110 psi with tank in place and regulator set )..if the regulator is working will it still allow it or is the regulator just off on pressure -this is way too high with both on the line...there is a check valve in meter also..

im stumped

Advertisement

hidden 1 is offline   Reply With Quote
Old 03-12-2009, 12:11 AM   #2
GC/Master Plumber/Mech
 
Join Date: Feb 2009
Location: Hays, KS
Posts: 1,472
Rewards Points: 504
Default

pressure dazed


I'm stumped about why you need and expansion tank.

If water supply has to be reduced by a regulator and you are not on a well..why do you need a tank?

Pressure increasing might be because of your water heater. I looked at a couple post and I saw where you had a TPV leaking and replaced the valve.

What is the age of the water heater?

You might have a calicum build up and the gas valve on the water might not know that the water has heated up to temp and not shutting down. A higher temp in the tank will cause higher pressures in the lines..just a thought.

Still don't understand the tank?

Advertisement

Plumber101 is offline   Reply With Quote
Old 03-12-2009, 10:48 AM   #3
Member
 
Join Date: Feb 2009
Posts: 165
Rewards Points: 150
Default

pressure dazed


sorry but your getting me mixed up with another.I have electric water -not gas-heater and never had to replace the t/p valve.i had spoke on a inline one a while back.I also have a closed system and heater is not very old.4yrs.
hidden 1 is offline   Reply With Quote
Old 03-12-2009, 11:57 AM   #4
Member
 
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 6,976
Rewards Points: 2,048
Default

pressure dazed


When you turn the water on again after no water has been used for awhile, do you get spurting suggesting overpressure?

Water heaters of all kinds need an expansion tank. You may need to check and calibrate said tank to be sure the air inside was not all absorbed and the neck of the tank was not clogged with sediment.

If your house did not have and did not need a pressure regulator or a backflow preventer then any expansion the domestic water incurred upon heating would go out to the water main or well.

For good measure against sediment buildup, a new T/P valve should be installed whenever a water heater is replaced.
__________________
Forget super sized fries. The Washington Redskins could promote healthy eating with First Lady Obama by choosing a (red skinned) turnip for a mascot.

Last edited by AllanJ; 03-12-2009 at 12:04 PM.
AllanJ is offline   Reply With Quote
Old 03-12-2009, 02:04 PM   #5
Member
 
Join Date: Feb 2009
Posts: 165
Rewards Points: 150
Default

pressure dazed


yes i do but i think its from air in line.
-I did a recheck on all water outlets and found something kind of odd.-every spicket- 2 out side, the hot on washer, and one on bottom of water heater shows 21 psi -but the cold (not hot)side going into the washing machine showed 62psi(one time high pressure spike to 110 on both needles under pressure)...it does fluctuate as the regulator is adjusted and as water pressure use changes..but 110 was suprising.

I will surly be readjusting main pressure on regulator to 55 or 60 and set tank at 55 but the washer cold line will again be reading 80ish im sure-

Im still stumped on the cold line for washer reading being so off .It is all copper line and same size throughout-3/4 fittingon regulator -after regulator one of the cold lines may go directly to washer before splitoff to other areas .
hidden 1 is offline   Reply With Quote
Reply


Thread Tools
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
New Pressure Switch -- low water pressure chach Plumbing 4 01-18-2009 10:50 PM
Low Hot Water Pressure btennant Plumbing 4 12-09-2008 10:31 PM
fittings and pipes sizes.. effect on pressure? cgerikh Plumbing 3 05-19-2008 11:37 AM
No water pressure in my pressure tank GordH Plumbing 6 05-18-2008 12:19 PM
Pressure Fluctuation with well water beertestr Plumbing 5 10-03-2007 10:18 AM




Top of Page | View New Posts