permaculture

[Scott Pittman <pci@permaculture-inst.org>]

I am trying to help a friend with high sodium (110ppm) in her well 
water.  The water causes margin burn on seedlings in the greenhouse and 
also seems to inhibit germination in some species. 

Anyone with any ideas of how to mediate sodium other than reverse 
osmosis?  I have had good results with CaCO3 with vinager injection into 
the water but don't know if there is an analagous substance that will 
remediate sodium.

Thanks,
Scott Pittman