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rainwater

  1. Cayambe

    Using rainwater collected from tarp, safe?

    I've spent some time setting up this water collection system, and have come up with a 4x6m tarp, over a 300L container, with tap. Now, after several tests, I am finally able to collect plenty of water. But the next question comes to mind. Will whatever treatment the tarp has been given...
  2. Dr Mike Oxgreen

    Rainwater from a butt - de-oxygenated?

    When doing my 50% water change, I use 9 litres of rainwater from my water butt, mixed with 3 litres of unsoftened tap water. This gives me roughly the 3° KH and 6° GH that I'm after, and I can tweak the GH up a bit by adding MgSO₄ solution if necessary. I use Seachem Prime as my dechlorinator...
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