My pool was completed in August 2018 and since then its chemical levels have been pretty stable. With the weather warming up I noticed some changes. I've been lurking the Pool ABCs here as a guide.
Last month my CYA was about 120ppm so I partially drained and got it down to 85ppm.
I just cleaned my pool this morning, tested with K-2006, then went to the pool store to compare results. They use those fancy testers with the spinning disc.
Here are the results:
My tests were pretty close to theirs. Their treatment recommendation:
1) Alkalinity is low. Add 6lbs. 0.7oz. of Alkalinity Up
2) pH is high. Add 1pts. 15.2oz. of Muriatic Acid
3) Free chlorine is high
My thoughts below
1) Isn't my Alkalinity in the upper range per ABC's of Pool Water Chemistry - Trouble Free Pool
They highlighted the Adjusted alkalinity value of 69 and want me to use this bucket of sodium bicarbonate (baking soda right?). Wouldn't this raise my Total Alkalinity beyond TFP's chart?
2) I agree with this so I will add Muriatic Acid. I've never added any to this pool so I'll dump the 3 cups and run the pump then retest tomorrow.
3) I'm following Chlorine / CYA Chart - Trouble Free Pool and just added another tab to bump it up a bit
4) Is the saturation index chart included with the K-2006 a good indicator of overall quality? Basically staying within the -0.3 and 0.5 range
Last month my CYA was about 120ppm so I partially drained and got it down to 85ppm.
I just cleaned my pool this morning, tested with K-2006, then went to the pool store to compare results. They use those fancy testers with the spinning disc.
Here are the results:
Date | Test | FAC | pH | TA | AA | CYA | CC | TAC | CH | Copper | Iron | TDS | Pho | Temp | Saturation Index | |
2/20 | K-2006 | 9.6 | 7.7 | 100 | 120 | 0.00 | 9.60 | |||||||||
2/27 | Poolwerx | 8.8 | 7.7 | 68 | 120 | 0.00 | 8.80 | 292 | ||||||||
3/14 | K-2006 | 7.0 | 7.8 | 100 | 120 | 0.00 | 7.00 | 60 | 0.35 | |||||||
3/28 | K-2006 | 6.6 | 7.7 | 110 | 120 | 84 | ||||||||||
4/5 | K-2006 | 5.2 | 7.8 | 100 | 0.00 | 5.20 | 420 | 81 | 0.5 | |||||||
4/6 | K-2006 | 3.4 | 7.8 | 110 | 85 | 280 | 79 | 0.4 | Replaced half the pool water | |||||||
4/7 | K-2006 | 5.6 | 7.8 | 110 | 75 | 0.00 | 5.60 | 86 | 0.44 | |||||||
4/18 | K-2006 | 4.6 | 7.9 | 115 | 80 | 0.00 | 4.60 | 280 | 72 | 0.45 | ||||||
4/18 | Poolwerx | 5.2 | 8.1 | 104 | 69 | 104 | 0.03 | 5.23 | 253 | 0.2 | 0 | 0 |
My tests were pretty close to theirs. Their treatment recommendation:
1) Alkalinity is low. Add 6lbs. 0.7oz. of Alkalinity Up
2) pH is high. Add 1pts. 15.2oz. of Muriatic Acid
3) Free chlorine is high
My thoughts below
1) Isn't my Alkalinity in the upper range per ABC's of Pool Water Chemistry - Trouble Free Pool
They highlighted the Adjusted alkalinity value of 69 and want me to use this bucket of sodium bicarbonate (baking soda right?). Wouldn't this raise my Total Alkalinity beyond TFP's chart?
2) I agree with this so I will add Muriatic Acid. I've never added any to this pool so I'll dump the 3 cups and run the pump then retest tomorrow.
3) I'm following Chlorine / CYA Chart - Trouble Free Pool and just added another tab to bump it up a bit
4) Is the saturation index chart included with the K-2006 a good indicator of overall quality? Basically staying within the -0.3 and 0.5 range