Quote Originally Posted by chem geek View Post

[EDIT] I sent a detailed E-mail with many links to Goldline Controls suggesting, among other things, that they recommend a minimum FC level of 3 ppm (or even higher) with their 70-80 (where they say 80 is recommended) ppm CYA. I have also brought up other issues such as lower TA levels to reduce the rise in pH (they recommend 80-120 which is too broad a range -- should be 80-90). I also mentioned different salt cell designs with more plate area that could operate at lower CYA efficiently and referred to incidents of higher corrosion of coping/hardscape and metal (stainless steel poles in the pool and copper in heat exchangers) and possible ways of mitigating that problem or at least mentioning its possibility. These are all issues we have discussed at length in this forum (mostly in The China Shop). We'll see what they have to say. [END-EDIT]

Richard

Richard,

A quick question since I struggled this year with PH continuously sliding up after having incorrectly assumed that I could avoid this by raising the TA to 120 (prior to reading your comments that lower TA could reduce this upward movement in PH). I can only find where you clearly state that it is not a problem to lower your TA to even 50-60 for a liner pool. I have a gunite/plaster pool and was wondering whether it is also safe to have TA at those low levels. Thanks.

Alex