Liquid fert bund design

Discussion in 'Cropping' started by Feldspar, Oct 24, 2018.

  1. Andrew K

    Andrew K Member

    Location:
    Essex
    I just use it for sealing joints, think you can have a choice of colours . Did an outside toilet septic tank with it last week.
     
  2. Is only the concrete joints that need sealing? Does the floor need treating to stop it being eaten away? I seem to remember that @Brisel said he treated the floor?
     
  3. Brisel

    Brisel Member

    Location:
    Dorset
    It depends on whet the floor is made of. Concrete should be ok but breeze blocks are porous. The joints certainly need sealing.
     
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  4. Exfarmer

    Exfarmer Member

    Location:
    Bury St Edmunds
    I know it is not a legal requirement so is perhaps more for getting brownie points. However I would not think 6 inch blocks would hold a serious leak.
    We had such happen when we started filling a large 3 year old tank, part the inlet pipe supplied for the job was mild steel ( major mistake) but I was very thank ful the driver had barely put a 100 kilos in when the pipe gave way.
    The tank had beenn supplied by a major supplier of such tanks.
     
  5. Gav

    Gav Member

    Location:
    Dereham, Norfolk
    I think it may be a case of watch this space with regards to bunding of liquid fertiliser tanks. In the past few weeks there’s been a major incident involving one and a river/fishing lake locally and vandals, won’t take many incidents like that for it to be turned into a legal requirement.
     
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  6. Used breeze blocks for the wall. Given it's only meant to temporarily contain spill, will these need treating too? If so, do you know of a good product to use?
     
    Clive likes this.
  7. Exfarmer

    Exfarmer Member

    Location:
    Bury St Edmunds
    There are plenty of chemical resistant floor paints which would do the job. However I would think Breeze blocks would need plastering first, otherwise you may find yourself using a huge amount paint.
    We found our bund became porous fairly quickly and that was breeze block, at least the rain did not hang about long :)
     
  8. Andrew K

    Andrew K Member

    Location:
    Essex
    If I were constructing a new bund from scratch I would probably use concrete panels as first choice, due to easier sealing etc, and because I am lousy at bricklaying.! Alot depends on the cost of raw materials of course. Agree with Ex Farmer that floor paint would help seal floors and walls better. Joints need a more thorough sealant IMO.
     
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  9. Clive

    Clive Staff Member

    Location:
    Lichfield

    i don't think you need to bother - as you say its only holds a temporary spill, you wouldn't leave liquid in there long if something did puncture a tank
     
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  10. Brisel

    Brisel Member

    Location:
    Dorset
    I was going to use bituminous paint. The type you use for gutter sealing. Perhaps I ought to test a bit in weak fertiliser solution to make sure. I'll ask my man at Yara. Yes, you do need sealant for breeze blocks at least part way up. An old contract client had serious corrosion in his bund wall at the bottom where a few minor spills had been diluted by rainwater. Splash some neat fertiliser on a block and you'll see it fizz as the acidity eats it away.

    I also hadn't though about the loading for a single skin breeze block wall bud if it was actually filled to capacity. I'll reinforce the next one.
     
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