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Recent content by FromHollywood

  1. FromHollywood

    Drainage Pipe Slope Leaving Storm Water Catch Basin -- three proposals

    Thanks for the very useful suggestions. I did think the outfall capacity of his 40 gallon tank might be an issue. An new additional factor I did not realize at the time of my posting is that there is another neighbor feeding into his 40 gallon tank with a 4" pipe. That tank would get fed by...
  2. FromHollywood

    Drainage Pipe Slope Leaving Storm Water Catch Basin -- three proposals

    I have a question with regards to design of a gravity overflow of a storm water catch basin. I'm about to install a gravity overflow from a 500 gallon catch basin which runs down a 140' drainage pipe into another Tank (already existing on a neighboring property) which then gravity feeds...
  3. FromHollywood

    Digging a drainage trench/swale with an uphill topography

    Thanks for the ideas! The house was built in the 1920's and they unfortunately situated it on the lowest spot of the property. The greywater tank is about 20 feet from the house. The ground in the basement and carport are at the same level as the top of the greywater tank. So, when the pumps...
  4. FromHollywood

    Digging a drainage trench/swale with an uphill topography

    Hi Mike, I have a battery backup sump pump but the water flow, during big storms, is too much for it to keep up with. Can't use those venturi backup solutions either since I don't have city water.
  5. FromHollywood

    Digging a drainage trench/swale with an uphill topography

    I have a 500 gallon subsurface greywater tank that collects groundwater and downspout runoff---it was dug at the low spot of the property. A sump pump in that tank pushes the water (through buried 1.5" PVC) to the corner of the property where it connects to the county trench. Once the water gets...

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