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 03-10-2011, 06:42 PM   #1
Newbie
 
Join Date: Mar 2011
Posts: 3
Share |
Default

Water pressure surging as soon as faucet is on


Hi all, new to the forum. I recently purchased a house with well water supply that was tested and good pressure. There is a bladder pressure tank that needed air when we first moved in but was okay at first. Lately, the water pressure has a significant drop and rise in pressure as soon as the faucet/shower/toilet is iused. It continues until the water is turned off. I have no clue where to start. any help?


pdpsinc is offline   Reply With Quote
Old 03-10-2011, 08:16 PM   #2
Member
 
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 6,929
Default

Water pressure surging as soon as faucet is on


The pressure tank may require calibration again. Ideally you want to empty all of the water out of the tank but it is hard to know when all the water is out without detaching the tank from the system.

You don't want to put too much air pressure in the tank because that can cause the bladder to herniate through the pipe connection and be damaged.

Pressure tanks mounted sideways or under the mounting pipe must have good bladders to work properly.

The pump should consistently not come on the instant you turn on a faucet That usually means too much water in the pressure tank.

Another thing to check is the pressure activated on-off switch for the pump.

__________________
Stop wasting time re-adjusting the pattern. Have several lawn sprinklers, one for each pattern.

Last edited by AllanJ; 03-10-2011 at 08:20 PM.
AllanJ is offline   Reply With Quote
The Following User Says Thank You to AllanJ For This Useful Post:
pdpsinc (03-10-2011)
Old 03-10-2011, 08:43 PM   #3
Newbie
 
Join Date: Mar 2011
Posts: 3
Default

Water pressure surging as soon as faucet is on


Thanks. The pressure tank is definitely an older model. It's a Sears Homart, looks like 20-30 gallons. It has 40/60 written on it by someone. Here's the kicker, the well pump is about 280 feet deep, the water pumps to the 2nd floor where the pressure tank, water filter and then water heater are located. I have a 3 story with 3 full baths (one on each floor). The water heater is only a 40 gallon and there are 5 people living in the house. The pump switch is on the first floor. We recently had work done in the cabinet that the switch is in and the electrician put a cover back over the switch and did some work on the breaker box in general. Not sure if that's when the pressure issue started or not. Also had a friend change the water filter for the first time within the same last 2 wks when this started. The filter is between the pressure tank and the water heater so he had to use the shut off valve when he changed the filter. Could that have any impact? As a new home owner, I'm pretty handy but don't mind calling a pro but I also don't want to get taken to the cleaners because we're new homeowners. The pressure tank doesn't have a pressure meter on it so I can't determine if the bladder went. Any more help would be greatly appreciated. thanks so far! Also, we were considering just scrapping the whole lot and changing to tankless. any opinion?
pdpsinc is offline   Reply With Quote
Old 03-11-2011, 09:30 AM   #4
Member
 
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 6,929
Default

Water pressure surging as soon as faucet is on


Given that the pressure tank is on the second floor ... try this ...

Turn off the water pump. Turn on cold water faucets on first and third floors. After the water stops flowing, open the air valve for the pressure tank (may require standing there for several minutes with a small nail carefully pushing a thin stud in the middle of the air valve inlet). This should empty all the water out the pressure tank. Also use the pressure drain valve (if any) and a bucket to make sure the tank is emptied of water. Provided you have instructions for doing so to this model tank, you can add more air to the pressure tank using a hand pump and a portable pressure gauge.

Then close or cap the presure tank air valve and turn the water back on. Play around with the faucets and see if the problem has gone away.

It would be good to install a pressure gauge or meter, anywhere along the cold water piping but preferably where it can be seen while you are near the pressure tank. If there is any pressure adjustment switch or valve for the pump elsewhere, put another pressure gage within view of this adjustment.

You may need to adjust the pump turn on and turn off points. I suggest having them differ by 4 to 5 pounds as opposed to just 1 or 2.
__________________
Stop wasting time re-adjusting the pattern. Have several lawn sprinklers, one for each pattern.

Last edited by AllanJ; 03-11-2011 at 09:42 AM.
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
Pressure drop across water heater, low hot water flow HVAC_NW Plumbing 2 01-17-2011 10:43 PM
Low/No Hot Water Pressure after changing Elements Onehipcat Plumbing 18 08-05-2010 09:16 AM
Intermittent Low Water Pressure Fox Plumbing 4 03-02-2010 06:04 AM
Installing Sprinklers appear to have caused Water Pressure to DRASTICALLY increase geminigirl Plumbing 3 11-12-2009 12:04 PM
Water pressure dropping tucsoncop Plumbing 2 04-25-2009 12:19 PM




Top of Page | View New Posts

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