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  1. #1

    Temporary cover for my pond filters

    I am looking for advice on a temporary cover for my pond filters. We plan to install a permanent solution in the spring, but need something to keep the area dry until then. Located in Toronto, we’re looking for suggestions that will protect the filters from the elements while allowing occasional access. Ideally, it should be lightweight, waterproof, and able to withstand the local weather conditions.


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  2. #2
    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    This is what I did:

    Composite decking cut to length and bolted to timber frames. Hinges on one side and gas struts to lift them 75 degrees:








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    Senior Member Rank = Grand Champion samp09's Avatar
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    I need to do something like that Steve, is the composite decking light?

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    Senior Member Rank = Supreme Champion RS2OOO's Avatar
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    Quote Originally Posted by samp09 View Post
    I need to do something like that Steve, is the composite decking light?
    No, it is heavier than normal decking and also flexes more so supports need to be closer together (I would say 30cm between joists if you want to walk on it - which I regularly do on the filter pit).

    But with the right blade it is nice to work with and feels reassuringly solid. I would be confident you'd get 30 years out of it.

    They are now using more and more composite sleepers for railways, mainly limited to the complex high traffic areas and over bridges due to expense, but that level of quality is estimated to withstand 100 years between renewals.

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  9. #6
    Indeed.
    The problem with a lot of plastic composite decking is that it is plastic. In this case I am using the word "plastic" not only to describe what it's made of but how it deforms under load.
    "Plastic deformation is when a material is permanently distorted by an applied force that exceeds its yield strength."
    Plastics have relatively low yield strength, which is why, for example fibreglass is added to polyester resing to make GRP.
    Many composite decking products have chopped strands in them (hence the term composite), but unlike the long glass/kevlar/carbon fibres traditionally used they use very short fibres to ease moulding and manufacture.
    We used some 50mm thick (and that's thick!) boards for a disabled access ramp at work. With approx 400mm centres within a few months it had permanently sagged between the supports.
    Ironically one of the best/lightest/best value carbon based composite structural materials is wood
    My DIY ponds from 1988 until present day.
    All can be found here:
    https://www.ukzero.com/pond.htm

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  11. #7
    Senior Member Rank = Supreme Champion davethefish1's Avatar
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    Quote Originally Posted by atticuskoifinch View Post
    I am looking for advice on a temporary cover for my pond filters. We plan to install a permanent solution in the spring, but need something to keep the area dry until then. Located in Toronto, we’re looking for suggestions that will protect the filters from the elements while allowing occasional access. Ideally, it should be lightweight, waterproof, and able to withstand the local weather conditions.
    if it can get as low as minus 30C, i'd be looking to add some 150mm - 200mm thick refrideratrion (cold room) panels.
    they are available over here so i'd assume they are cheaper in Canada than the UK.
    lots usually available second hand on ebay too...

    https://www.coolmaster.ca/cold-storage-warehouse/

    https://www.ebay.co.uk/sch/i.html?_f...anels&_sacat=0

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  13. #8
    incredible pond and attention to detail. Bravo

 

 

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