Can you please advise on how your TA became so high? Is it from the well water? If not, then reducing your PH every few days or each week will lower your TA. This process will take some time until your pool finds the best combination. I had to go from 140 down to 70 before my PH stabilized. What really helped was the rain and snow from this past winter. I pumped it back into the pool. This year, after the 3rd addition of MA, the PH finally stabilized.
Muriatic Acid is really not that hard to work with. A few precautions:
1) Wear a long sleeve sweatshirt
2) Wear thick gloves
3) Wear a breathing mask and eye protection
If you feel that this will be an every week process, then take a few strong Pellegrino green small bottles and fill each up with MA. It is easier to work with a set amount, but one bottle should be able to reduce your PH from 7.8 to 7.2 and then you can repeat the cycle when needed. Always, and I repeat Always do any type of MA additions, etc. outside in the fresh air. Pouring out of a small bottles is easier to do. Always pour in front of a return while pump is running for at least 3-4 hours. Store in a very safe place away from children and animals.
