Re: My ph is low and it laughs at Borax

Originally Posted by
Unabomber007
New testing:
FC 6
CC 0
TC 5
PH 6.8
ALK 60
CAL 0?
CYA 80 (tested twice and got 80 both times)
During the CAL test my water just BARELY turns pale, pale pink and even 40 drops does nothing to change the color. So I'm guessing no CAL as previous years I've had some results from that test but nothing this year.
Wrong guess. If it stays pink at 40 drops then you are over 400 ppm CH or CAL. You need to keep going. It is possible for Calcium Hardness to be over 1000 ppm
The pool has only been circulating for 1 or 2 hours so the Baking Soda is working and hopefully will go up a touch more later. I ended up adding 2 12# bags to the skimmer and 1 12# bag to the deep end. I still have one bag left and 2 boxes of Borax.
As far as the use of trichlor (and the Corox toilet tabets are the same chemical, btw. They are also trichlor), the reason it's used in erosion feeders is that it is a slow dissolving form of chlorine that is made from stabilizer and chlorine (a chlorinated isocyanurate). It's the nature of the beast. The next slowest dissolving form of chloine is cal hypo and that dissolves MUCH faster than trichor and cannot be used in erosion feeders but must be used in skimmers or special vented feeders to avoid explosions.
IF you continue to use trichlor tabs your CYA will continue to rise at the rate of 6 ppm for every 10 ppm of chlorine introduced and since most pools need to have 1-2 ppm FC replaced every day you can see that in just one month your CYA will rise by about 20-40 ppm!
Retired pool store and commercial pool maintenance guy.
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