![]() No pH adjustment necessary with the Optimizer Plus product. What may have been confusing I admit was my mentionning of other similar products, I just mentionned those so people wouldn't think I'm biased towards BioGuard in any way. All of it went into the pool without my having to adjust the pH whatsoever. ![]() Sorry, no, I have the empty pail of Optimizer Plus right here. ![]() So, bottom line, is that buying boric acid direct or using 20 Mule Team Borax plus Muriatic Acid are far cheaper than any of the branded products. Proteam Supreme + Muriatic Acid -> $2.80 per pound So to sum up costs:Ģ0 Mule Team Borax + Muriatic Acid -> $1.50 per pound equivalent of Proteam Supreme (+ acid)īoric Acid directly -> $1.85 per pound to $1.57 per pound of Proteam Supreme Proteam Supreme is $2.12 per pound for a large size as shown here so far more expensive than the Borax equivalent. 20 Mule Team Borax is around $0.80 per pound, but you need 1.3 times as much (for the decahydrate compared to pentahydrate) so that's equivalent to $1.05 per pound and then the required acid is $0.45 per Borax pound equivalent so that's a total of $1.50 per pound which is only a little less than using Boric Acid directly (which I find more convenient anyway). A price comparison is in this post where boric acid can be obtained for around $1.85 per pound ($1.57 equivalent to Proteam Supreme weight) while Proteam Supreme Plus costs around $3.09 per pound as shown here. You can read more about the use of borates here. At much higher pricing are the Proteam and Bioguard products. Proteam Supreme Plus contains mostly boric acid with some sodium tetraborate so that it is fairly pH neutral (boric acid by itself is slightly acidic).Ģ0 Mule Team Borax plus Muriatic Acid or the use of boric acid directly are by far the least expensive approaches to adding borates. The "Plus" is confusing in the BioGuard product since it still requires acid, unlike the Proteam version with the "Plus". The MSDS I linked to was for BioGuard Optimizer Plus which was a sodium tetraborate just like 20 Mule Team Borax and requires acid addition as described here and here. I believe you are mixing up Proteam Supreme Plus, which does not require acid addition, with BioGuard Optimizer Plus and Proteam Supreme (without the Plus) which do require acid addition.
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