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Which by my last test just now I lost almost 10ppm again. Since 630 this morning dosing by the pool math numbers. That’s 10ppm in 4 hours. I’ve double checked all the CYA FC chart. Poolmath entries. Size Current/goal numbers Exact chem I’m using and its percentage. I don’t have a salt test...

So pool math says going from 19fc to 28fc (going over by 4ppm to stay in range) to add 161oz 10% Chlorine. So that’s add 1.25 gal. Which this upper limit I’m going to (28) is really for a cya of 70.

38 drops fas dpd. 5 second swirl. So 19ppm Fc Zero Cc. CYA we’ll say 60. So I need my fc up some more. I’ll use pool math.

Just did FAS-DPD. 38x.5=19fc Zero cc

CYA test. Filled to 7. Added chem to 14. Shook 3-45 seconds. Added to 100 looked. Added to 90 looked. Added to 80 looked. Anyways so from dot with nothing added to 100,80,60 then 50. So add ten to the 50 puts me back at about 60.

Ok so I didn’t know that. I HAVE noticed that the pink will try to come back after many seconds. Good to know. I’ll be quicker.

Algicides have been added over the past month. Bonnie and Clyde’s Algae pro 60. Poly (oxyyethelene(dimethimino)ethylene dichloride. NO ALGICIDES HAVE BEEN USED in last 2 weeks. Leslie’s clear aid. “Clarify Dead Algae and uncloudy your water” No ingredients listed. But it’s so good you’ll...

Oops. 47. 47 drops. Not 49.

Yep. 1-1/2 hours after last addition of chlorine. Pump on high. Filled tube to 10ml line. Added 2 level scoops. Swirl forever. lol. Add drops and count them. All the way to 49.

The last two times I did this FC dropped drastically with CC remaining at essentially right at zero or so. I’ve studied the test and even had someone follow the directions along with me.

My bad. I meant I added 2.5 instead of 2.1 first thing this morning.

I put the 10ml water in a “washed with pool water” plastic measuring tube. Add two level scoops of R-0870 DPD Powder crystals. Swirl one thousand times to dissolve. lol. Then when no crystals left I start adding drops and counting them while continuing to swirl around the vial. Writing down the...

I know I know. Lol But this was from before I began my own testing.

No cover. Water glass clear. No chlorine smell at all. It’s been almost three hours since I dosed up from the overnight test. I can fas-dpd test now I suppose.

I went and looked at some pool store test results I had laying around from several weeks ago. 6 of them actually from three different stores before I started doing my own testing. And they all averaged together have CYA at about 68. Which is really close to what I’m getting here at home with the...

They were out. But I will go to a hardware store in my little town. They had some of that brand. Which was nice that they had pool stuff. By the way that’s where I got the bag of CYA first of June or so. I read the bag as .5 lbs but the decimal was actually part of Wt.5 So I used it thinking...

Lost right at 10pm FC overnight. 23ppm down to 13.5ppm. The CC (the 2nd part of Fas-Dpd test) reads the minimum at maybe one drop or no drops needed. Been doing that for over a week. CC have been at basically zero for a week. Pool math said add 269oz 10% which is 2.1 gallons. Added 1.5 gals...

Because of rain?

Ok. Rain just started. Been several weeks without any. So fresh numbers…… This morning at 5:30am FC 8.5 CC under .5 barely registered Just now at 4:30pm FC 4.0 (using 10ml sample to save drops) CC barely there. Not even worth a drop of R-0871. PH 7.1 TA 110 CH 220 CYA 80. It was cloudy...