So, it appears I have a leak in my pool. I never did the bucket test. I am estimating I have a loss of about 1,000 gal of water per week.
I've been a pool owner for a little over a year. The previous owner installed an autofill device.
My TA, CH, pH values appear to be exceptionally stable, despite me doing zilch about them.
The only chemicals I currently add are liquid chlorine (10.5% 0.5 gal per day) and stabilizer (about ~2lbs every two to three weeks). I'm aiming for a CYA-level of 50 ppm, though, currently it's only at 30 ppm.
My questions are:
- What is the drawback of having a leak in the pool - besides the increased water bill?
- Is the added utility water most likely taking care of my TA, CH and pH readings?
- If the above answer is yes (at least partially), wouldn't the convenience of utility water being automatically added to my pool outweigh the hassle (maybe even the cost) of monitoring, buying and adding pool chemicals to keep three more readings in check, as opposed to if the leak were fixed?
Here is a link to an interactive chart of my recent pool tests.
Pool Vitals 20160311.jpg
In the above chart note that vitals taken are graphed as lines, while chemicals added are graphed as bars. The scale on the right only applies to CH and TA. The scale on the left is to be multiplied by 10 for water temperature (in Celsius) and CYA.
Low FC values were taken immediately before adding liquid chlorine (~6 pm), high FC values were taken three hours thereafter (~9 pm).
The unit of CYA added is in lbs. Liquid Chlorine (10.5%) added has units in gallons.
If none of the above work for you, the most recent pool test results were:
FC: 3.75 ppm (sic!)
CC: 0.00 ppm
CH: 200 ppm
TA: 110 ppm
CYA: 30 ppm
I have recently acquired a new lot of R-0013 reagent which skewed my CYA results (down by 10 ppm) compared to the previous reagent. Further, I moved the ubiquitous tube sock filled with CYA granules from my poorly circulated skimmer to a return, causing a rapid dissolution of about two lbs of CYA within the past 24 hours - previously no significant reduction in CYA level in the tube sock was noticeable over the course of 2-3 weeks when placed in the skimmer. This recent location change probably made the CYA reading go up from 20 to 30 ppm.