Captive Air Tank - Plumbing - DIY Home Improvement | DIYChatroom
Advertisement


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 08-04-2015, 10:41 AM   #1
Newbie
 
Join Date: Aug 2015
Posts: 2
Rewards Points: 4
Default

captive air tank


i have a sears captive air tank that brings my well water into the house, i have lived here for ten years and have never had a problem. however, i have noticed that the bottom of the tank is rusting and i'm not sure but the bladder may be bad. my question is, can i just replace the bladder or does the whole unit need to be replaced? it seems to be holding it's pressure and i would prefer to fix this in the most inexpensive way, just don't want to waste time if it's not going to work.... it is a sears, model 390.291601 tank and i'm not sure how old, i know it's over 10 years old cause that's how long i've been here, any help or advise would be great.... thank you
bakerj59 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-04-2015, 11:36 AM   #2
Member
 
Join Date: Sep 2012
Posts: 12,799
Rewards Points: 6,600
Default


Quote:
Originally Posted by bakerj59 View Post
i have a sears captive air tank that brings my well water into the house, i have lived here for ten years and have never had a problem. however, i have noticed that the bottom of the tank is rusting and i'm not sure but the bladder may be bad. my question is, can i just replace the bladder or does the whole unit need to be replaced? it seems to be holding it's pressure and i would prefer to fix this in the most inexpensive way, just don't want to waste time if it's not going to work.... it is a sears, model 390.291601 tank and i'm not sure how old, i know it's over 10 years old cause that's how long i've been here, any help or advise would be great.... thank you
If the bladder is bad the draw down gallons will be less than designed gallons of draw down and if the condition has deteriorated to a certain point rapid pressure switch cycles will be evident.

Bladder replacement - just don't go there. First off I doubt seriously you would ever find a bladder to fit your tank even by having the numbers off of your tank. Possibly but a real long shot.

My supplier discourages attempting bladder replacement and after installing a complete new tank I discovered why. The old bladder had to be cut out and as I understand it the new has to be twisted in some manner to enter the hole. Buy a new tank if you need one and be glad you did.
Attached Images
 
SeniorSitizen is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-04-2015, 11:57 AM   #3
Newbie
 
Join Date: Aug 2015
Posts: 2
Rewards Points: 4
Default


thank you..... you're probably right, especially since it's somewhat old!!
bakerj59 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-04-2015, 01:09 PM   #4
Water Treatment
 
Akpsdvan's Avatar
 
Join Date: Mar 2010
Location: Alaska
Posts: 1,078
Rewards Points: 1,184
Default


The Sears and Flow some thing at Home Depot while they talk about replacing the bladder when needed are never done as the photo shows.
There is a line of tanks that can have the bladder replaced but they are $$$$
and at one point I did replace the bladder in one, took about 20 minutes from start to finish.. and this was back in the mid 90's.
The cost would be rather high for a normal home, this was commercial.
How much room is there where the old tank is at right now?
Akpsdvan is offline   Reply With Quote
Old 08-04-2015, 04:19 PM   #5
Member
 
Join Date: Mar 2013
Location: Ohio
Posts: 5,703
Rewards Points: 1,952
Default


Replace it with the largest you can afford. The bigger the less your pump will run.
Ghostmaker is offline   Reply With Quote
Old 08-04-2015, 06:02 PM   #6
Water Treatment
 
Akpsdvan's Avatar
 
Join Date: Mar 2010
Location: Alaska
Posts: 1,078
Rewards Points: 1,184
Default


What Ghost said, well drills had said longer pump cycle the better which also means a lower number of pump cycles in 24 hours.

So room and $$$
Akpsdvan is offline   Reply With Quote
Old 08-05-2015, 09:06 AM   #7
Member
 
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 8,920
Rewards Points: 3,444
Default


You don't need to replace the captive tank if it is not leaking (water) and the pump is not running a lot of short on-off cycles.

You may want to recheck the captive tank pressure. Turn off the well pump, flush the toilets* and after that open a cold faucet upstairs until the water stops.

Check the tank pressure and use a bike pump or tire pump to set the pressure to a few PSI less than the pump start pressure.

Close the faucet(s) and turn the pump back on.

* Gives each toilet bowl and extra rinse through rather than simply waste the water down the drain. Alternatively drain most of the water via the bathtub into buckets to water the garden with.
__________________
Stick to your lawn watering schedule until it really pours. Otherwise the storm might miss and the part that gets watered last (3 days away?) will dry up.
AllanJ is online now   Reply With Quote
Sponsored Links
Advertisement
 
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
Leaking Walve of Boiler - Empty Tank halfhomeowner HVAC 3 10-10-2013 05:23 PM
Tempering Tank jagans Plumbing 16 06-05-2013 09:58 PM
Removing anti-siphon valve from a toilet tank Chris0516 Plumbing 7 09-30-2012 05:09 PM
Hot Water Tank and Pressure Help tbakbradley Plumbing 2 01-17-2011 09:25 AM
No water pressure in my pressure tank GordH Plumbing 6 05-18-2008 11:19 AM




Top of Page | View New Posts