Hi all,
I've been seeing quite a bit of chlorine consumption over the past weeks (my pool was a tad milky last week but is crystal clear now) and finally went out to buy a K-2006 kit to do some better measurements (I used the Lamotte ColorQ2 before - I know, in hindsight, that was a stupid purchase) so I could follow the correct testing procedures.
FYI: my pool pump runs from 8am to 6pm.
Here's what the numbers looked like over the past few days (blanks = I didn't test that value that day):
So it seems my loss overnight (based on the last measurement) is 1.6 and part of that is recovered during the day with the SWG set to 35 (which, according to the SWG calculator excel generates 2.2ppm in 10 hours runtime).
With the water being clear (the spots on the bottom are stains, not algae):
I have a waterfall feature which is switched off but where I think the valve isn't closing 100% anymore so it trickles water onto the tiles - and that seems to be causing some algae (sorry for quality of picture but had to zoom in on my phone):
Obviously something is causing my overnight loss and that needs fixing - I'm not convinced that just increasing my SWG is the solution.
Is it the algea on the tiles?
Anybody any suggestions on how to move forward with this?
Thanks,
Bernard
I've been seeing quite a bit of chlorine consumption over the past weeks (my pool was a tad milky last week but is crystal clear now) and finally went out to buy a K-2006 kit to do some better measurements (I used the Lamotte ColorQ2 before - I know, in hindsight, that was a stupid purchase) so I could follow the correct testing procedures.
FYI: my pool pump runs from 8am to 6pm.
Here's what the numbers looked like over the past few days (blanks = I didn't test that value that day):
| Measurement | July 15 - 5pm | Jul 16 - 5.30 pm | Jul 18 - 5pm | Jul 18 - 8pm | Jul 19 - 6pm | Jul 20 - 6:30am |
| FC | 10.2 | 7 (lost 3.2 in 24h) | 3.6 (lost 3.4 in 48h) | 7.4 | 6.6 (lost .8) | 5 (lost 1.6) |
| CC | 0 | 0.2 | 0.4 | 0.2 | 0.2 | 0.4 |
| pH | 7.6 | 7.2 | 7.6 | 7.5 | ||
| TA | 100 | 90 | 80 | |||
| CH | 450 | |||||
| CYA | 65 | 75 | ||||
| Action taken: | Added Acid | set SWG to 25% | added CL & CYA set SWG to 35% |
So it seems my loss overnight (based on the last measurement) is 1.6 and part of that is recovered during the day with the SWG set to 35 (which, according to the SWG calculator excel generates 2.2ppm in 10 hours runtime).
With the water being clear (the spots on the bottom are stains, not algae):
I have a waterfall feature which is switched off but where I think the valve isn't closing 100% anymore so it trickles water onto the tiles - and that seems to be causing some algae (sorry for quality of picture but had to zoom in on my phone):
Obviously something is causing my overnight loss and that needs fixing - I'm not convinced that just increasing my SWG is the solution.
Is it the algea on the tiles?
Anybody any suggestions on how to move forward with this?
Thanks,
Bernard
Last edited:
- lost 1 ppm overnight, CC is less than 0.5 since the water hardly changes color when I add the 5 drops (it's not pink at all, just not as clear as before the drops and reverts back with 1 drop of FAS-DPD reagent and the water is crystal clear!