Apr 3, 2009 · The problem with lowering Total Alkalinity (TA) is that when you add acid to lower TA, pH also decreases. This limits the amount you can lower TA without pH becoming too low.

Feb 3, 2010 · After adding many iterations of Sodium Bisulfate (acid to lower pH) to lower the pH and also adding sodium bicarbonate to raise Total Alkalinity, (this is done first when it is required) it …

Oct 13, 2013 · Hi My water is very low Alkalinity (40-50) and high pH (~7.9 or 8). I can not seem to get the TA up to 80 and the pH down to 7.6. I am using baking soda (sodium bicarb) to increase …

Aug 17, 2009 · However, if you need to lower pH without lowering alkalinity, you could use carbon dioxide (Sort of a reverse aeration). If you use baking soda to raise your alkalinity, it should not raise …

Aug 31, 2018 · I decided to switch from using SpaUp to baking soda. Same stuff, right? But could they be different somehow? Spa Up says to add 3 Tb for my size hot tub to raise pH. I started with 5 Tb …

Apr 29, 2011 · I wrote this guide on lowering TA because there was not one for pools and the one in the hot tub water chemistry by Nitro, while good, contains some incorrect information. It is what worked …

Jan 23, 2010 · In this case, I think that it would be best to drain and refill. High bromine and a low pH is a very bad combination. If you can't drain and refill, I recommend that you use sodium thiosulfate to …

Dec 14, 2005 · I've noticed that those of us who use bromine seem to have a problem with the Total Alkalinity level dropping. Adding Alkalinity increaser alone does not help, as this is mostly used to …

Aug 8, 2008 · I have been following the rules for adding muriatic acid to my spa, it seems to be the only thing that works, I can't get the slo'n'low and other stuff to bring the alk down worth a darn. my …

Jul 10, 2009 · There is no such thing as Alkalinity Down. When you add an acid to the water, it lowers BOTH pH AND Total Alkalinity (TA). If you then aerate the water, you then raise the pH with no …