We could only find one source of muriatic acid last year, and this year's searches prove to be just as useless. Home Depot sells http://www.homedepot.com/webapp/wcs/sto ... reNum=4014
That's what I have on hand. I have checked the MSDS and the only indication to concentration says < 25% Hydrochloric Acid. see http://www.homedepot.com/catalog/pdfIma ... 30f5c6.pdf
This percentage is not on the pool calculator, so we've been doing some guessing and H has done the math for me but it doesn't seem to be coming out as accurate as it should. It's close, but we usually just miss the mark when we use it.
Can I get some help with this product? Where can we buy the correct product, locally? Pool stores don't seem to carry it (at least in online catalogs). I just opened a bottle of the product referenced above, I'd like to use that up first and then find a better source for something I can use with the pool calculator.