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 02-12-2009, 02:54 PM   #1
Newbie
 
Join Date: Feb 2009
Posts: 4
Rewards Points: 10
Question

back flushing a water line.


anyone know of an easy way to do this?

woodywoodwick is offline   Reply With Quote
Old 02-12-2009, 08:13 PM   #2
plumbing contractor
 
PLUMBINGITALL's Avatar
 
Join Date: Jan 2009
Location: south carolina
Posts: 38
Rewards Points: 25
Default

back flushing a water line.


need more info. what is the problem

PLUMBINGITALL is offline   Reply With Quote
Old 02-12-2009, 08:13 PM   #3
Master General ReEngineer
 
Bondo's Avatar
 
Join Date: Dec 2007
Location: Chaumont River, Ny.
Posts: 3,683
Rewards Points: 2,000
Default

back flushing a water line.


Ayuh,..

I'm afraid you're going to have to explain yourself awhole lot better that that....

With All the Info you've provided,....
Run the water the Other way.....
Bondo is offline   Reply With Quote
Old 02-12-2009, 08:22 PM   #4
Newbie
 
Join Date: Feb 2009
Posts: 4
Rewards Points: 10
Default

back flushing a water line.


Quote:
Originally Posted by Bondo View Post
Ayuh,..

I'm afraid you're going to have to explain yourself awhole lot better that that....

With All the Info you've provided,....
Run the water the Other way.....
hot water pressure issue
heres the the thread I posted yesterday... I checked the areator first thing..
woodywoodwick is offline   Reply With Quote
Old 02-12-2009, 09:36 PM   #5
Member
 
Join Date: Jun 2008
Posts: 850
Rewards Points: 516
Default

back flushing a water line.


I would open somewhere to flush too,,then take air pressure hose and blow backwards with an air compressor. Before hooking back up try flushing with regular system forwards. (Look where the sink supply line connects to___,,, is that galvanized pipe??Or copper?? Or what?? Doesnt it go from larger to quite small there?? If so first place to check,blow,flush etc. it will come,just have to persuade it,maybe 10th time if it was MY luck!! with that line off use compressor to make air flow thru faucet instead of water,,,both ways if necessary
4just1don is offline   Reply With Quote
Old 10-18-2012, 04:10 PM   #6
Newbie
 
Join Date: Oct 2012
Posts: 2
Rewards Points: 10
Default

back flushing a water line.


I am talking about backflushing the water line between the water main under the street, and the water meter in the basement of the house. I have never done backflushing in this situation but I think it could be helpful. I have very low flow rate and pressure in my house. To my knowledge my water line, 100 ft in length, is nominal 1/2 inch copper water tube type K, installed when the house was built in 1960. Everyone tells me that I need a larger water line, say 3/4 inch. However I have looked up the pressure drop for 1/2 inch water line. For 3 gallons per minute the pressure drop over 100 feet of water line should be about 7 psi. In an actual test of my water line, done by a City water technician, the flow rate was just under 3 gallons per minute under the full pressure difference of 60 psi. My existing water line seems to offer 8.5 times more resistance to flow than a clean water line would. Before I go into the astromical rip-off cost of having the water line replaced, I want to investigate backflushing. Maybe backflushing would clear out deposits in the water line and restore it to normal operation. I do not think air would be used in this process. The steps would be to shut off the water valve just before the water meter. Remove the water meter and use appropriate fittings (all planned out before hand) to connect a pressurized water tank to the fitting where the water meter was removed. In the meantime you need a method to prevent water from pipes in the house from running down into the basement. Then open the water valve. Then apply maybe 80 psi water to cause backflow into the water main. Only a professional plumber, preferably a plumber from the City water department, should carry out this process. The amateur should not try this! The City water department should be consulted before this process is done. But I think there is a chance that this simple process could solve the problem. The other thing to discuss with the City is whether the water stop valve out at the curb, or on your property line, is defective in the sense that it does not open fully and is restricting water flow.


Last edited by edward0608; 10-18-2012 at 04:16 PM. Reason: clarification
edward0608 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
Gray PCV for water supply line - is this OK? Jim S. Plumbing 13 08-09-2010 09:20 AM
(Water Heater MYSTERY) Hot water out from dead tank with cold water in it? Inayity Plumbing 6 07-14-2008 08:36 PM
Sump pit filling with water in dry weather dimitar Building & Construction 13 12-19-2007 11:59 AM
Replacing part of the Main Water line rgmetro Plumbing 2 04-12-2007 08:30 AM




Top of Page | View New Posts

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