Quote:
Originally Posted by Ron99
When I did mine I washed several times with tap water and then two rinses with RO/DI.
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That's what I did :-) Actually, I did a quick rinse cycle with tap water (entire bag of sand in a large tub. Just took it outside and sprayed it with a garden hose. Then rinsed a few cups at a time in a bucket with RO/DI water to finish it off before putting it in the tank 4 cups at a time. Might have been overkill rising it with RO/DI though, as there wasn't a lot of rinse water going back into the tank. Just mostly sand.