Nature2 makes a much larger cartridge for swimming pools.  It comes in a 
variety of sizes.  Most popular is $75. and it will last an entire season.  
Since you will not beusing chlorine, it will not cost any more per season
Nancy
  ----- Original Message ----- 
  From: nancymike 
  To: silver-list@eskimo.com 
  Sent: Tuesday, November 02, 2004 12:27 AM
  Subject: Re: CS>Re: CS<Silver-Copper Bar


  Nature2 sells a cartridge for spas, but they also have one for swimming 
pools.  You need only one cartridge for swimming pools per season and they are 
able to purify water for any size pool  Certainly up to about 20,000. gal.
  Nancy
    ----- Original Message ----- 
    From: brick...@aol.com 
    To: silver-list@eskimo.com 
    Sent: Tuesday, August 31, 2004 10:08 PM
    Subject: Re: CS>Re: CS<Silver-Copper Bar


    A Nature2 cartridge treats only 1000 gallons.  OK for a hot tub but a 
little short for the swimming pool.  I believe they are around $22.  If I 
wanted to treat my swimming pool I would need 8 cartridges.  Two years ago I 
used 8 gallons of CS and 1 gallon of CCu in my pool.  Christmas tree customers 
were remaking how clean my pool water was.  I can make CS much cheaper than the 
Nature2 cartridge but I leave for Arizona after Christmas and trust one of my 
sons to take care of the hot tub.  He sometimes forgets.  It might be better to 
buy a cartridge to use when I am down south, and he could pretty well forget 
the chemicals.
    Brickey