I'm trying to lower my TA from 140 down to below 120 using muriatic acid. So far it seems to be working well. Last night and this morning my TA is 125 today with a ph of 7.2
I added a little more acid this morning and hopefully my TA will then be below 120 by this evening when I get home.
I'm a little surprised that my ph stayed at 7.2 because I ran the aerator all night - I thought that was supposed to raise ph. So, I would expect that this evening my ph may be too low and will want to raise it.
I read that I should use 20 Mule Team Borax - but I don't know what proportions to add it. A cup? A box?
I have an IG, plaster, 12K, with a Sand/Zeolite filter.