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Country Discussion Topics
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Ever put a bladder in a pressure tank?
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Mike in Va.    Posted 03-12-2002 at 06:34:47       [Reply]  [Send Email]
Hello to all-
Need to ask your advice about putting a new bladder in our pressure tank. The tank is water logged. Water squirts out of the valve stem.
When I put the system in 17 years ago I chose a big tank (50 gal.) The fill end has a 2" opening. The manufacturer has a replacement bladder for $89
and that beats the heck out of the cost of a new tank.
Theres no good time to lose your water, is there? Virginia is still dry, although we got a nice shower on saturday. I got soaked and cold: but liked it. Seemed like the pastures turned green before my eyes. Can that be?
Went back to the house at dusk to have a hot shower and lo & behold - no water. HA! We keep a kettle on the woodstove. I took one of them stand by the stove soakers. Still miss that shower though. Any advice will come welcome.
Take care- Mike


Mike in Va. THANKS FOR THE ADVICE    Posted 03-14-2002 at 06:20:40       [Reply]  [Send Email]
Grateful again for the input,

Some tanks have replaceable bladders. Our tank qualifies. Mark was right about the rust, durn it. Will go with 2 new tanks (42 gal. each)
with the pressure switch set between the two.
It will be nice to shower again...
Regards,
Mike




Mark Hendershot    Posted 03-12-2002 at 08:40:35       [Reply]  [Send Email]
Replacing the blader can be done from the bottom of the tank. There is a plate that unbolts with a ring of bolts to do it with. Now that that has been said I would get a new tank because when they break they rust the inside of the tank and when the bladder contracts and expands it will rub the rust and wear out fast. The reason your pump burnt out was most likely due to cycling of the pump real fast with the bladder gone. It is important to set the air in the tank correctly there are directions that come with it. In general you want to set the air presser a little less than the shut off that the pumps pressure switch is set at. About 3-5lbs less that way you get maxium capasity of the tank when it is being drawen down. Get the largest tank you can afford because it allows you pump to turn off and on less and it will last longer too. A pre/charged tank is the best with the bladderin it. You will get the most drawdown in water with it. You won't have to worry about water logging of the tank and short cycling the pump and ruining it. Answering a question about the cut in and cut out switch that allows the pump to run longer befor it turns off. If it is set at say 30psi on and 50psi off the pump will run till it gets to 50 psi shut off and not turn back on till it drops to 30psi. Mark H.


praveen moragaspitiya    Posted 02-20-2004 at 02:56:04       [Reply]  [Send Email]
i am student of faculty of engineering university of peradeniya in sri lanka. also now i am studing in final year.therefor if u can send me the detail of this subject it will be very valuable for me.

my address=praveen moragaspitiya
74 nagolla game rd
matale
Srilanka

thank u
Praveen



Mike in Va.    Posted 03-12-2002 at 09:24:41       [Reply]  [Send Email]
Mark- first off all tanks come precharged don't they???... 2nd. our tank is fifty gal. it has been super. I'll not want anything bigger. It will provide all the water & pressure we need. I installed it in our basement on the top off a concrete canning shelf (hand dug basement). It lays on its side on a p.t. wood cradle that I fashioned to keep it completely isolated from any dampness. The manufacturer said thats just fine. As for the pressure switch info: that is posted on the side of the tank. In fact I've seen that in a prominant location on all the tanks I've looked at. The tank is rated to go 75 p.s.i. but my switch is 40-60 p.s.i. The tank just work-hardened over the years and gave out... the pump gave good service and more than likely gave out at the correct time too. I can't ask a thing more for the system I installed years ago. I took the time to research the specs. on both the pump (Franklin) and the tank (Con-aire). That was over 17 years ago and I'd have to say I feel pretty good about the service it has given. If I had to do it again I'd probably go with the same configuration. As for the rust in the pressure tank, well that will be what it is... no rust= new bladder.
On another note: I enjoyed your post about fire prevention. Thought a word or two to remind us all about an inside fire extinguisher is appropriate also. We pump water from a pond a few hundred yards from the house. We haul to stock tanks. The same rig we haul with has put out brush that could have burnt the neighborhood. Folks that throw out butts ought to be hamstrung...


Mark Hendershot    Posted 03-12-2002 at 09:50:39       [Reply]  [No Email]
Pre Charged tanks have a bladder and the other type has no bladder in it and you charge it just befor you fill it with water. That type of tank is a lot bigger for the same drawdown. The bladder type is the best. The rust I was talking about is what forms on the sides of the tank due to the leak in the bladder. The rust won't be in your water that is in the bladder. If you change it out fast it won't rust much and the bladder won't have it to rub on. When you pull the bladder out of the tank you will see what I mean. They are hard to stuff back in and pull out. Let me know how it goes. You got a good life out of the set up you had. 50 gals is a big tank, I have a 85 gal one but I use a lot of water too. Some people get a small one because it is cheaper and pay for it later with pump wear. Fire Extinguishers are good to have I have 6 of them placed in all the buildings and one in each bedroom.


Bob /Ont.    Posted 03-12-2002 at 07:42:43       [Reply]  [Send Email]
Hi Mike&Hay Try this for now, if your tanks are upright and the tire valve is at the top, do things the old way. Shut off the pump, remove the valve from the top, open the line into the bottom of the tank and let it drain completely out.
Then replace the valve if it is leaking, or reuse the old one if it isn't.(use a tire valve tool to r&i the valve). Close the line at the bottom of the tank and turn on the pump. This should get you out of the bush for now, maybe untill the tank starts leaking who knows worth a try.
Later Bob


Mike in Va.    Posted 03-12-2002 at 08:04:19       [Reply]  [Send Email]
Great advice Bob, thanks. I used an air compresser to blow out the rest of the water in the tank. We're using that now. Our pump burnt up too... trying to keep up I guess. I don't feel too bad about it. Lifes just too short, right? I put the pump in the well on July 25th. 1986.... I found a note I'd nailed up near the knife switch by the tank. My hand writtin ain't improved much since then neither... Regards- Mike


hay    Posted 03-12-2002 at 07:01:06       [Reply]  [No Email]
i never heard of anyone replacing just the bladder. however if you do it, please post on here how you got it done. my well is also waterlogged and needs the same thing done or replace the entire tank. you are sure right about tanks being pricey.


Mike in Va.    Posted 03-12-2002 at 07:39:54       [Reply]  [Send Email]
Hello Hay,
What kind of tank have you got? Does your pump cycle through too often? We burnt our pump out at the same time the bladder burst. Ouch.
Also what is the cut- on and cut- off p.s.i. on your pressure switch? Thought I'd compare a little. I'll let you know how it goes. May be a week or so before I can get the bladder & pump here & get after it. In the meantime it's a little bit uncomfortable but not bad...


hay    Posted 03-12-2002 at 09:01:50       [Reply]  [No Email]
after reading your posting and responding to it, i called a friend and he told me my tank does not have a bladder, but rather a float. he said the reason that my well is waterlogged is because the tank is leaking air and that makes the system cycle off-on quickly.


Nathan(GA)    Posted 03-12-2002 at 09:52:55       [Reply]  [No Email]
hay, I replaced the float in our tank years ago and it fixed the problem. The float is what regulates the amount of air in the tank. Now a leak might be something else.

And to Mike, not all tanks have bladders.


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