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    Default New Sump Pump Question (holes???)

    I'm going to put in a isolated sump pump basin to relieve some water pressure that builds under our 20'X 30' basement about 2
    times a year, and leaves 1/4" of water on the floor. My best
    guess what I'll find when I cut the hole in the floor is just
    a lot of sand. (we just dont have clay or rocks around here).
    I'm going to put in 24" deep basin that I will wrap with a
    filter fabric to keep out any silt. I'm interested in keeping
    the first 4" of soil under the cement floor well drained. My
    Question is "WHERE DO I PUT THE HOLES IN THE PLASTIC BASIN, AND
    HOW MAY HOLES SHALL I DRILL IN IT?" (I'm putting in a 1/2 hp
    pump that will pump 3500 gph @ 8 ft. lift) *My thinking is 3 rows
    of 1/2" holes....2" apart around the radius....and keep the
    rows 2" apart from one row to the next.(this will put the rows
    1" under the floor,...3" under the floor,...and 5" under the
    floor.)

    ANY THOUGHTS?
    Last edited by scott redder; 01-09-2009 at 06:54 PM.

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