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CaCO3 addition

At 03:48 AM 3/12/99 -0500, Steve Benz asked:
>Anybody know roughly how much crushed
>limestone to use and why? 

Assuming your limestone is all CaCO3 (if it isn't this will likely lead to
a slight underdose), to raise the hardness of 1000L =250 gallons of water 1
dH =18ppm requires 18g of limestone.  That is about 2/3rds of an ounce.  If
you have a postal scale, weigh out one ounce, that is enough for 375
gallons to increase 18 ppm.   Prorate as needed.

Dave Gomberg, San Francisco            mailto:gomberg at wcf_com