So far, I've been doing a bit of reading and thought I had the basics figured out. It appears that arm and hammer washing soda is soda ash and possibly not baking soda? I'm still unsure. Anyhow...
Pool is very new, 10,000gal IG pebbletec SWG. This morning I tested as follows:
I couldn't find MA so I grabbed some dry acid, cya to have on hand. I couldn't find any baking soda at home depot, so I headed home, added some acid and tried to find in which box our baking soda is. It wasn't, so I went to the store and got what thought was baking soda. I didn't recall the quantity I needed so I grabbed a 55oz box. Turns out the quantity required was 75 oz. So I dumped the entire 55oz box in, as my wife asks if its supposed to be that cloudy.
Two hours later, it hasn't cleared up and I decided to test again this time getting a better TA of 60, but the ph is on the high side of the 8.4 that the test strip allows.
I also have since realized that what I bought was soda ash, and may or may not be baking soda. I don't have a test kit yet, as were just getting moved into a new house with a new pool.
Any assistance is greatly appreciated.