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    AZgrammie's Avatar
    AZgrammie Posts: 1, Reputation: 1
    New Member
     
    #1

    Mar 3, 2008, 12:00 PM
    House water tank elevation
    We are getting ready to install an external 400-gallon water tank for our remote cabin. How high do we need to place it in order to have adequate pressure without the need for a pressure tank or pump? I figure the bottom should be about as high as the top of the hot water tank, am I right? There will be no dishwasher or washing machine, but there is a shower!
    Thanks, Lis
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
     
    #2

    Mar 3, 2008, 12:43 PM
    Well Liz, I sure hate to bust yo bubble but let's see how high your 400 gallon tank should be to give you at least a little over 20 PSI in your cabin, ( regular house pressure is 45 PSI).. For every foot of height add .434 Psi. That works out to a about a 50 foot tower. If you wanted to bring it up to regular house pressure you would have to put your tank on a 100 foot tower. What you're going to hafta do is install a booster pump and a bladder tank. Sorry I couldn't wave a magic wand and give you the pressure you desire but universal physics got in the way. Good luck, Tom
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
     
    #3

    Mar 3, 2008, 12:53 PM
    I have seen systems like you want in England and some remote cabins in the US. You would not be happy with this setup and you'll have a bear of a time trying to get your hot water heater to operate effectively. How are you getting the water into the tank to begin with, isn't there a pump?
    salihburhan's Avatar
    salihburhan Posts: 1, Reputation: 1
    New Member
     
    #4

    Feb 10, 2011, 06:12 AM
    I have the same problem. Folks here put tanks at a height of about 4 meters (13 feet?). It seems to work with them. I could not manage to get water properly flowing. Could it be where I put the tank? Mine is 40-50 meters (130 feet?) away from the house.

    Liz, if you manage to make it work, can you post it here?

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