Please help with pump selection

Discussion in 'Pumps and Tanks Well Forum & Blog' started by weekender, Feb 13, 2007.

  1. weekender

    weekender New Member

    Messages:
    6
    Please help me choose the appropriate jet pump.
    I have one 3rd floor bathroom, two 2nd floor bathrooms and two 1st floor bathrooms. The kitchen and laundry are also located on the ground floor. I’d like to have no less then 30psi available for the 3rd floor bathroom. My limited choices are a Goulds J7S, J10S or J15S. The only other pump brands commonly available here are: Eurostar and Speroni, hence my Goulds choice.
    I will have a 300gal above ground storage tank feeding the pump and either a 44gal or 62gal pressure tank.

    I've never installed something like this before so any other tips would be greatly appreciated.
  2. Pumpman

    Pumpman Pump Sales

    Messages:
    191
    Location:
    So. Cal
    It sounds like you have a very large home, so I'd go with the J15S. While all three pumps may attain the necessary pressure, the J15S will give you more volume, which you may need with all the bathrooms.
    Ron
  3. weekender

    weekender New Member

    Messages:
    6
    Thanks Ron for the quick response.

    The house isn't exceptionally large. Just lots of bathrooms. The house actually won't get lots of use but when it is used it will be full of people. I'm guessing you would also recommend the 62gal pressure tank as well?

    Also, here's a dumb question. Should make a shelter around pressure tank and pump to shield them from the elements or can they be out in the open?
  4. Pumpman

    Pumpman Pump Sales

    Messages:
    191
    Location:
    So. Cal
    Yes and Yes. Go with the larger pressure tank, and it always helps when the pump and tank have some pretection around them.
    Good luck!!
    Ron
  5. weekender

    weekender New Member

    Messages:
    6
    Thanks Pumpman,

    I'm ready to order all the correct parts now. :)
    I think everything should be up and running in about a week.
  6. Raucina

    Raucina Previous member

    Messages:
    515
    You guys will love this: maybe this is a scenario for the CSV with a tiny tank, and the CSV fed by a submersible inside the storage tank. No need for pump house or pump shelter. Mount the tank and valve against the big tank to keep them from freezing. I bet you can get the submersible on **** for 150 bucks and it should well outlast any jet pump and use less power.

    Since your static storage tank is only 300 gallons, It does not do much for storage. I would possibly skip it and feed your system directly from the well which hopefully has a submersible already in it.
  7. speedbump

    speedbump Previous member

    Messages:
    4,540
    Location:
    Riverview, Fl.
    What is the reason for the 300 gallon tank? Do you have a low yield well?

    bob...
  8. weekender

    weekender New Member

    Messages:
    6
    Raucina

    The house is located in the Philippines so freezing is out of the question. Low 60’s is cold here.

    Speedbump

    Actually there is no well. The town’s municipal water system will feed the supply tank. The reason for this whole setup is because the local water system is very inconsistent. Low water pressure is a daily occurrence and no water for one or two days at a time is not that uncommon either.

    Actually, I am interested in a CSV. I just wouldn’t be able to get one here for several months.

    I just thought of another question. How can I get the pump to shut off before the supply tank completely empties?
  9. Bob NH

    Bob NH In the Trades

    Messages:
    3,317
    Location:
    New Hampshire
    You can put a float switch in the tank, like the float switches that are used in sump pump systems.

    A 1.5 HP pump is pretty large for such a float switch, so you might need a large relay such as a "definite purpose contactor". They are available for less than $20 in the US. If you have access to equipment from Grainger www.grainger.com , I can suggest a catalog number if you tell me your operating voltage.

    You should also have a float valve in the tank to keep it full automatically when there is water.
  10. speedbump

    speedbump Previous member

    Messages:
    4,540
    Location:
    Riverview, Fl.
    Here in the states the city water pressure is always 200 psi.:rolleyes:

    A CSV is always a good idea.

    BobNH answered the question on shutting the pump off and keeping the tank full. I can go one better and make all this happen with low voltage so the control circuits would not be dangerous.

    bob...
  11. Bob NH

    Bob NH In the Trades

    Messages:
    3,317
    Location:
    New Hampshire
    It's called a transformer that is $9.95 in my Grainger catalog, and select the contactor with a 24 Volt coil.
  12. speedbump

    speedbump Previous member

    Messages:
    4,540
    Location:
    Riverview, Fl.
    Mine is about the same price, but it plugs into the wall and is self contained.

    bob...
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