Didn't somebody give a little rant last year about the need for ~2x the cya for a salt pool? I have been adding a lb or 2 extra cya when dosing the pools this year to get the cya to ~ 45- 60 ppm(I used to tie the cya to salt @ 1 lb : 100 lbs to get to 30-40ppm). Though I ranted about the extra cya last year, it hasn't caused any problems so far and I know our customers, they will add more salt when needed, but space the cya - so I've got them covered for a couple salt additions.
Unscientific notes from the feild:
I've been looking at all the salt pools I've opened this year and have seen NO sign of salt having degraded the coping or deck! The imprperly made 'stainless' screws are still rusting out (I've also seen it in some non-saline pools) and the non stainless bolts on slides and diving boards are getting trashed. Although our oldest salt pool is only 4 seasons old, the aluminum coping and concrete decking seem to be holding up fine (of course there's still the whole 'try to get the stainless rails out of the aluminum cups' in the fall issue...
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Take care all, and thanks for being here - Ted
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