On Tue, 3 Jun 2008 10:56:10 EDT, Peter Pan
wrote:

Could I use something like Instant Ocean?

That definitely has salt in it but first I'd go to the local hardware,
like Lowe's or Home Depot to the water softener section and check the
price on their 40 lb bag of salt that is more than 99% pure salt. The
last I bought was about $4 a bag.
--
Hal Middle Georgia, Zone 8
http://tinyurl.com/2fxzcb