Designing reinforced concrete water tanks?

The existing potable water tank has 30,000 gallons capacity, the owner wants another water tank with same capacity. Is it okay that the walls are shared by the two tanks or they should have separate walls?

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  • 1 month ago

    Water tanks should have all four walls and the floor poured at the some time so there are no cold joints that can leak. By using one of the walls of the existing tank you run the risk of having leakage at the cold joints between the existing tank and the new tank.

    Another potential problem is differential settlement. The new tank will likely settle some after it is completed and filled with water. The existing tank has already done that so if the two tanks are connected the joint between them is subject to failure when the new tank settles.

  • 1 month ago

    You need an engineer to assess at the tank and assess the site.

    If you try to do this without an engineer you're asking for trouble.

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