Recent content by Apuri

I ran a test this morning... FC: 2 PH: 8 TC: 90 CYA: 30 I had last added Borax 3 days ago and stopped once pH reached 7.4 and TC was around 80. What could have caused the pH to jump so dramatically in 3 days? I had my pool pump running about 6 hours daily with the waterfall.

Yes, algae is all dead and water was crystal clear before I did the acid wash to clean the calcium buildup. Water still is very clear (except for being a bit soapy/cloudy yesterday when i added baking soda). How much should I raise the CYA to? I have a concrete pool. Also, can you comment on...

Yes I did have algae issues about a month ago. The pool was yellowish- and I had to shock it, and brush it off to get rid off it.

aah! the fun with logarithmic scales! Thanks for solving the mystery for me :)

Yes, CYA = 30

makes sense. I will start adding Borax is small quantities till I reach 7.4. Thanks. Two more questions I have: - I read somewhere that aeration increases pH. I have a waterfall and fountain installed on the pool for aesthetics, how much do these effect the overall pH? - My CYA is at 3.0...

I tested again this morning. Here are the results TC: 3.6 pH: 7.0 TA: 70 ppm Why didn't the pH rise as much? You had predicted that yesterday itself, curious about the mystery behind it :) Also, what are the next steps I should take?

Ha! Thanks to help from all of you. Ok. So finally I got to TA of 70ppm, pH is still low, 2 base test drops to get to 7.0 So I am guessing next round will be about 2 lbs of Borax (7.0 to 7.4 pH per Pool Math)... and then end the day with about 60 oz of 8.25% bleach (0 to 4 TC as per Pool...

it was still yellowish. I added 1 drop at a time for the base test and got to 7.0 (lowest color block on k2006) after 4 drops. - - - Updated - - - Yes, I will aim to get TA to 70 in the next hour or so. And then move to Borax to fix the remaining pH. I promise I will be in constant touch :)

Just tested. TA is now at 40ppm; pH still very low (had to add 4 drops of base test to register 7.0). Since TA is increasing by adding baking soda but not pH, at what stage should I start using Borax (i think both pH and TA increases, correct)?

Thanks. I will add another 5 lbs baking soda and test after 30 mins. How about Borax? Do I add now and start raising pH or wait till TA gets more in line? I am looking at pool math now... Pretty handy tool.

Patrick, any word of advise? So far I have added 2 lbs of baking soda and 1 cup of Borax. Reading through online posts, some folks had issues adding a lot of baking soda too fast, so quite hesitant and looking for some guidance. Thanks. - - - Updated - - - Also, at what stage do I start adding...

Thanks Richard. I just did the base demand test. It took 12 drops to bring the pH to 7.0. Hope this helps. Question? Can I add the 10 lbs of baking soda in one go? or need to do it in intervals? Also, should the pump be running at all times during this process?

Here are the readings: FC - does not turn pink when I added DPD PH - light yellow color TA - already pink when I add R008 CH 300 CYA 30 I have 12lb baking soda, 4lb borax and about 3 gallons of bleach on hand.

TA doesn't turn green at all. I do have a box of Borax (I think 4 pounds) on hand. I will get a complete set of readings shortly. So far, TA: already pink when I add R0008 Dpd test: do not turn pink PH: light yellow color