Gravity fed system with pressure tank?

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Old 05-20-04, 11:18 AM
krg
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Gravity fed system with pressure tank?

I am trying to design a gravity fed water system for my cottage. In order to get decent pressure can a pressure tank be fed from a elevated water tank and increase pressure to the cottage?

Any help or pointers to information will be appreciated.

ps. there is no power at the cottage.
 
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Old 05-20-04, 12:01 PM
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A pressure tank is designed to sense the water pressure in order to control the pressure switch that turns a pump on and off.
By itself, a pressure tank won't increase pressure.
An elevated tank can. (That's the purpose of public water towers...volume and pressure.)
Here are a couple of sites that are great tutorials that may help you get a handle on this.
www.peekspumnp.com
www.jessstryker.com
Good Luck!
Mike
 
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Old 05-20-04, 05:13 PM
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krg,

Mike is right about the pressure tank.
A pneumatic tank would not be of any use but just a regular tank would be.

If you stuck a 50 gal tank, 20 feet in the air you would have about 10 psi based on about 1/2 psi per foot of elevation.
The size of the drop pipe would only need to be sized to the flow.
 
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Old 05-20-04, 05:32 PM
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Wink

Where or what do you have for this water . Could you build a water ram and the water itself would pump itself up into a water tower like Gregh said.

ED
 
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Old 05-20-04, 09:36 PM
krg
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Off grid cottage

Thanks for the feedback.

Water is for 1 tub and 2 facets in the cottage. Currently use a cistern pump for my needs. I really wanted to have decent water pressure and not have to built a tower 40+ feet high to do it.

Will have to look at alternative powered pumps (solar).
 
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Old 05-21-04, 04:50 AM
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If you can drive your vehicle right up to the door you could use a 12 volt pump and a deep cycle battery you bring in each time you go there.
If the battery went low during your stay your vehicle could power the pump.
 
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Old 05-23-04, 07:58 AM
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Like GregH said any Boat or R/V store will have a 12 volt water pumps. That they use on them .


ED
 
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