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  1. murpht3

    Drilling Holes in Sump Pit

    I get what you are saying. How thick is the slab in a basement typically? I am guessing that this is just moisture moving its way up through the floor rather than the water level since I have the level in the sump set below the floor. I will try lowering the turn on level some more and see...
  2. murpht3

    Toll gate coin reader

    They do a number of things...similar to how a payphone works....first, most machines run the coins through a magnetic field (to pull metal slugs out). Then they are tested for weight and size...
  3. murpht3

    Drilling Holes in Sump Pit

    Yeah, the house is at least 35 years old...I have very little details about the construction of the home. I am assuming that the french drain was added after the house was built since it does not span throughout the entire basement (it's only at the front of the house in the basement where...
  4. murpht3

    Drilling Holes in Sump Pit

    There are already two large diameter (about 1.5 inch) holes that are on two sides of the sump which I can see have gravel in them (so I assumed that these went to the other side of the slab. It is my belief that the french drain drains (which follows the perimeter of the basement wall where the...
  5. murpht3

    Drilling Holes in Sump Pit

    I understand what the sump pump is doing...the reason why I ask is because I have heard several (qualified) people tell me that this is a good suggestion. I do not claim to be an expert on cement dynamics, but I can see where having a smooth cement surface (i.e., the smooth, flat, square sump)...
  6. murpht3

    Drilling Holes in Sump Pit

    Hi, Several people have told me to help drain the foundation better to drill holes in the sump pit. The problem that I am having is water is apparently coming up in the middle of the floor of my basement (through the tiles). Our house sits on an exceptionally high water table (for the area at...
  7. murpht3

    Frequency manipulator?

    I am a little unclear as to what you are trying to do. When you say you have a frequency source from 1 khz - 36 khz, I assume you mean that it is an frequency adjustable source (as opposed to a broadband source). If this is all you want to do, you could just use a resistor or potentiometer to...

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