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Thread: Two pressure tanks at different locations

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    Senior Member Letsrunum's Avatar
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    Two pressure tanks at different locations

    https://terrylove.com/forums/index.p...nd-safe.80984/

    Running two pressure tanks at different locations comes down to friction losses through the pipe run on how much extra water storage or drawdown that your really getting(Test It!)

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    Senior Member Letsrunum's Avatar
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    I would design that extra pressure tank where it can be isolated from the system and add a hose bibb for future maintenance to that pressure tank.

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    Senior Member Letsrunum's Avatar
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    One more factor can be elevation rise but I always see them on level ground at two different locations.

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    Senior Member Letsrunum's Avatar
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    They hold gals of water moron and I don't need a CSV to make it work!

    You need to size your pipe correctly between the tanks to keep your friction losses to a minimum.


    Most people have generators today but I've never needed one with the few times I've been with no power. My storage from my pressure tank has always gotten me by. Not everyone is that lucky I can agree with that.
    Last edited by Letsrunum; 04-03-2019 at 09:23 AM.

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    Senior Member Letsrunum's Avatar
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    https://terrylove.com/forums/index.p...ressure.82124/


    You will never have fluctuating pressure when designed properly. But, if their is alot of elevation differences (CSV will have the same problem) your better off putting them in the same location. As long as your using less gpm then the pump can produce with good pressure(you will never notice the pressure swing guaranteed). Only one check valve at deep depths would be the second mistake giving.

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    Senior Member Letsrunum's Avatar
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    Quote Originally Posted by Letsrunum View Post
    https://terrylove.com/forums/index.p...ressure.82124/


    You will never have fluctuating pressure when designed properly. But, if their is alot of elevation differences (CSV will have the same problem) your better off putting them in the same location. As long as your using less gpm then the pump can produce with good pressure(you will never notice the pressure swing guaranteed). Only one check valve at deep depths would be the second mistake giving.
    A CSV system can't outlast a room full of tanks(can't compete with drawdown capabilities from cycling) or just one properly sized pressure tank to match the submersible pump. Isolate the tanks from the system for future maintenance.

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    Senior Member Letsrunum's Avatar
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    Quote Originally Posted by Letsrunum View Post
    https://terrylove.com/forums/index.p...ressure.82124/


    You will never have fluctuating pressure when designed properly. But, if their is alot of elevation differences (CSV will have the same problem) your better off putting them in the same location. As long as your using less gpm then the pump can produce with good pressure(you will never notice the pressure swing guaranteed). Only one check valve at deep depths would be the second mistake giving.


    Prime examples of flow and pressure loss issues(different than fluctuating pressure)is going to be a big leak before the pressure tank to operate close to an open flow system to cause low flow and pressure far away from the leak(taking most of your flow and pressure). The other two are poorly designed systems(friction losses with flow losses to cause pressure and flow issues) and all different types of valves that can cause pressure and flow issues when their not accepting good flow and pressure beyond the valve with minimal losses.

    Pay attention to things you install that can also have pressure and flow issues after installation(needs to accept more gpm flow)(not more pressure ratings...). Although you don't ever want higher pressure on anything in the system beyond their max pressure rating(doesn't mean it won't operate just fine with lower pressures when your still getting good flow).

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    Senior Member Letsrunum's Avatar
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    A CSV valve will open up to accept more flow or there is an issue with the valve.

  9. #9
    Senior Member Letsrunum's Avatar
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    Personally, I'm not a fan of over killing the submersible pump size with multiple pressure tanks, because it takes to long to build pressure(keeps the submersible pump running alot longer to keep adding up wasted runtime for cooling that is not needed for a 4in submersible motor). If, your able to use a properly sized pump to match the multiple tanks(input pipe sizing)is where it really shines with runtime vs future wear damage from running all the time(using a 100start motor in a 24hr period). Pay close attention to friction losses and flow losses on long pipe runs(pipe sizing). You don't want alot of friction before reaching the tanks(slow reaction time).
    Last edited by Letsrunum; 06-22-2019 at 02:26 PM. Reason: Phone and I just might throw it across the room

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