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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

Buy individually or both books together. Delivery is free!


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  1.  
    Hi all

    We're getting quotes for some repair work to our concrete septic tanks. One chap has said that to do the work he would remove the concrete biscuit covers from both tanks, rather than actually get into the tank. But I've heard elsewhere that once removed the lids never go back on properly.

    Has anyone any experience or views on this?

    If it is ok to remove them, when replaced should they just be sat back on top, or should some mortar or similar be used?

    Many thanks
    • CommentAuthorbarney
    • CommentTimeSep 15th 2020
     
    It's definitely a confined space, so taking the biscuit slab off the top is by far the safest way to get access - it's then well ventilated and not likely to contain an irrespirable atmosphere - although the potential flooding risk still exists I guess

    They are normally loosely mortared back in, as the liquid level should never get as high as the slab junction.

    Regards

    Barney
  2.  
    Thanks barney - that's good to hear that it's standard practice. I've since spoken to him again and he said he will not be using any mortar or anything - just plonking the lid straight back on and leaving it at that...
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