Help opening swamp

Thanks in advance!

IG, plaster, 25,000 gal, 1hp superpump, sand filter

I dumped a lot of Di-Chlor in the pool last week as that's what was on hand and I wanted to try to quickly halt growth at temps are in the 80's now in Texas. Added 12 lbs of Cal-hypo Thursday after reading that too much di-chlor could be bad. Finally was able to fo a full test this morning and this is what I have:

FC: 2.6
CC: 1.6
pH: 6.0 or below
TA: 40
CH: 70
CYA: 70

According to poolmath I should add the following:

34 lbs borax
10 gal 10% bleach
15 lb baking soda
46 calcium chloride

As this pools is currently in swamp state, I completely understand that I may need all that and more. My main question is, do I add that all at once or should I step in certain things one at a time whit checks in between?

Thank you!


Mod Squad
TFP Expert
LifeTime Supporter
Apr 17, 2010
East Texas
Welcome to the forum.. First raise TA to 60 or so range and recheck ph. Adjust ph to mid 7 range. Start your SLAM using plain bleach for your CYA level. I'd adjust CH afterwards... but it really doesn't matter. See SLAM article in Pool School. You're gonna need a fas-dpd chlorine test to properly conduct the SLAM.
Thank you! I did get the correct test kit, which is where I got the above numbers from. I won't be able to start a full SLAM until tomorrow, so I will try to get the TA and pH up today.

I appreciate the help.