I have always used these : http://www.google.com/products/catal...ed=0CFkQ8gIwAQ
on edit: may not be what you want ... you have to open it (expose it to water ) to manually turn it on or off.
I have always used these : http://www.google.com/products/catal...ed=0CFkQ8gIwAQ
on edit: may not be what you want ... you have to open it (expose it to water ) to manually turn it on or off.
14'x31' kidney 21K gal IG plaster pool; SWCG (Saline Generating System's SGS Breeze); Pentair FNS Plus 48 DE DE filter; Whisperflow 1 HP pump; 8 hours hrs; kit purchased from Ben; utility water; summer: none; winter: none; PF:5.7
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