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    Clean pressure after adding DE to sand filter

    Reference to http://www.troublefreepool.com/threads/84056-Fighting-my-second-algea-bloom-in-2-years Should clean pressure after adding DE to a sand filter be the pressure before adding DE, or after? It's not explicitly stated but based on the context I believe it should be the pressure after...
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    OCLT - SLAM FC required?

    Is OCLT valid as long as FC is appropriate for CYA and no chlorine is added overnight, or does OCLT require SLAM FC?
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    Custom date format?

    I would like to suggest that the option for (thread/post displayed) custom date formats (or, at least DD-MM-YYYY) be added to User CP. Thanks.
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    1 in 10,000 dilution for testing bleach %

    For the 1 in 10,000 dilution to test bleach %, a 2-step serial dilution of 1 in 100 is indicated (i.e. a 1 in 100 followed by another 1 in 100). I've noticed that the recommendation is add 10ml TO 1 litre water to achieve the 1 in 100 dilution. Doesn't that result in a final volume of 1010ml...