Original > Hot Tub Forum
Lowering TA
brian_tr:
I changed water yesterday in my sundance cameo. I was trying to follow Nitro's method of lowering TA. I was a little afraid of adding to much acid at one time after I started. I started with one cup 31.45% muriatic acid. Ran jets and air for 30 minutes. Then did four more cycles with 1/2 cup of acid each which puts me at 3 cups of acid. My TA is reading about 160 and ph still off scale. I did not have any calcium so I have not added yet. My water is very soft. I will go get some before I continue today. Will adding the Calcium change the TA? Should I just take the TA reading I get at the spa store to calulate how much more acid to add? I am going to try the Silken this time. Once water is balanced I will add.
I am also switching to the 488 filter and doing away with the micro clean.
Just read about Silken and looks like it raises your ph quite a bit. Dont think I need that right now. I think it is the only product with Borates at my store.
Chas:
Interesting about the filter - we are selling a good number of the replacement filters to get rid of the micro thingy. Seems to be working fine.
8-)
brian_tr:
Got back from store. TA 188, PH 8.7, CH 35. They have two kinds of shock. They are SpaGuard chemicals. One is Enhanced Shock and one is Oxidizer. I am guessing its the Oxidizer I need. Has anyone tried the Silken? I will get my hardness up and then start bringing the TA down some more.
Nitro:
Hi Brian,
Your TA is still too high, and needs to lowered. Just continue the process, and remember to taper off acid additions as you get closer to your target TA.
Also, I definitely recommend getting a good drop test kit (such the Taylor K-2006), so you don't have to run to the spa store everytime you want to test your water. Especially when your balancing your water.
Regarding the shock. If you are going to follow the Dichlor/Bleach method, you need Dichlor (ie Chlorine Granules). SpaGuard calls it "Chlorine Concentrate". The Oxidizer I assume is MPS (non-chlorine shock) and not the same thing. They also have a "Shock" with a little Chlorine, but I would stick with Chlorine Concentrate (aka Dichlor).
brian_tr:
I am bring TA down. Im at almost 4 cups acid now. I have a good test kit just like to compare readings with theirs once in a while. I still have not decide to stay with Dichlor or try bleach yet. I had understood is still good to shock with MPS once in a while. I think I had been adding too much dichlor before figuring it was better to add to much than not enough but forgot about CYA. I will check readings more this time and try shocking a little less.
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