Stormwater pit

Discussion in 'Renovation & Home Improvement' started by Invest_noob, 13th Aug, 2019.

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  1. Invest_noob

    Invest_noob Well-Known Member

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    We're in the process of extending our PPOR and have just done a stormwater plan, which was a requirement of council.
    Turns out we need to install a 'storm water pit', which basically means additional costs etc.

    Is this something that will affect future resale value like in the case of an easement?
    Any other implications? What options do we have here?

    Screen Shot 2019-08-13 at 10.08.26 am.png

    Thanks in advance
     
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  2. willair

    willair Well-Known Member Premium Member

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    One way would be change the roof's fall and run the Skillion Roof back into the existing roof with a box gutter and the storm water flows out the front ..imho..
     
  3. CowPat

    CowPat Well-Known Member

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    Options
    *underground retention tank with pumps to move the excess water out to the street
    *rainwater tanks with the overflow going to the absobtion trench or pump out pit

    I can see by the RL and IL the property is close to the beach
    which means you probably have a sandy type soil
    which is why an absobtion trench is a means to dispose of stormwater

    if the soil isn't taking the storm water you could turn it into a wick-trench
     
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  4. Invest_noob

    Invest_noob Well-Known Member

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    But that would mean going back to council for approval?
     
  5. willair

    willair Well-Known Member Premium Member

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    Have you had any quotes on the storm water pit?..
     
  6. Invest_noob

    Invest_noob Well-Known Member

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    The builder we're working with said $3,040 plus GST, not including removal of dirt.
     
  7. Invest_noob

    Invest_noob Well-Known Member

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    Thanks for your post, I don't have enough technical knowledge to fully understand it, however I will ask the builder or the civil engineer about them.
     
  8. willair

    willair Well-Known Member Premium Member

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    Not advice in any way,but if that's the full cost then maybe stick with the plan..
     
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  9. bmc

    bmc Well-Known Member

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    no need for an easement as it is wholly within your land.

    but, if it is deemed to be part of a storm-water detention system (OSD) then council may stipulate to protect the works with a Positive Covenant. (sort of an easement)

    but looking at the plan i doubt it.

    even so, if you develop in the future it would be ripped out and become null and void as you will probably require a new drainage plan anyway.

    most councils don't like pump out systems.
    unless you want to spend more money trying to come up with another genius solution, this absorption pit should be fine.
     
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  10. shorty

    shorty Well-Known Member

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    Our council made us install a pump pit to pump water up hill. We're a corner block at the top of the hill, so the water then flows back downhill right past the old discharge point they wouldn't let us use.

    In hindsight I should have pushed back a lot harder, but first time developer and it was the last thing to get DA.
     
  11. Invest_noob

    Invest_noob Well-Known Member

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    Yes, the last minute/unexpected bit is the annoying part. Our block is small as it is (360sqm) and we would prefer not having a galvanised grate in the middle of our yard.
     
  12. Something_Wrong

    Something_Wrong Well-Known Member

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    We had a Sormwater plan draw up for us, by a expert who didnt even visit site, Then the Plumber turned up and looked at the drawing changed it by running the pipe under the house and connecting to the existing and it went out to the street.

    Saved us $20k in digging and pits.

    Did a change with council approved and moved on, total cost was about $800, but saved thousands, your there isnt much to save.
     
  13. Invest_noob

    Invest_noob Well-Known Member

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    My main issue wasn't so much the cost but having a massive pit in the backyard, an ugly galvanised grate and effect on re-sale etc.

    However from speaking to civil engineer, the grate can be placed anywhere and doesn't have to be right next to the pit. So we're going to hide it in a corner rather than have it in the middle of the backyard.
    The actual pit itself needs to have a 2m side setback and 3m setback from the back fence, So we're moving it closer to the house just because.
     
  14. Scott No Mates

    Scott No Mates Well-Known Member

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    The grate is 600 x 600 mm what's the big deal (the rest is underground)?
     
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