Small Pool Build - Brisbane, Australia [emoji1037]

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kimkats said:
When I am mowing I will jump off the mower and jump in the pool when I get hot. Then right back on the mower to work on the yard some more. Nothing better!

I see one of the dogs watching you from his couch! LOL

Kim:kim:
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Will remember that next time!

Yes, they were both laying on the turf as I was putting it down. Weren’t impressed when I watered it lol.
 
Ok, so new drama. Once again this chlorinator is doing my head in. Since refilling the auto acid container to the correct ratio the ph has been great... or so I thought. It brings itself down to 7.6 and never climbs above 7.7. The chlorinator read out has always been accurate in the past and matched my testing numbers. Tonight though when I tested for ph I got around 8 possibly 8.1. Tested with the 4-in-1 kit the pb left me and got the same reading. Got my 11 year old to check and he read the same as I did. The chlorinator was reading 7.7. Hmmm. Could it be out of whack even though it seemed to have been calibrated well and has been accurate until now? At a loss as to what’s happened. I guess I will need to test daily again rather than relying on the chlorinator to give me an accurate reading until I can get this sorted. I hate the colour match test for ph as I wonder how good my ability is to match. Honestly it’s one step forward and two steps back with the chlorinator. It has been so much trouble so far.
 
riley00dog said:
Could it be out of whack even though it seemed to have been calibrated well and has been accurate until now? At a loss as to what’s happened.
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Delve into the calibration menu and see if your offset that you applied when calibrating the probe is still stored in there. Maybe something screwy there??? I cannot see how the probe would shift so far out of wack in such a short space of time.

From memory my offset was -0.4 on my probe.
 
Costas > DownUnder said:
Delve into the calibration menu and see if your offset that you applied when calibrating the probe is still stored in there. Maybe something screwy there??? I cannot see how the probe would shift so far out of wack in such a short space of time.

From memory my offset was -0.4 on my probe.
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I was afraid you would say that! I didn’t calibrate the probe initially it was done by pbs guy. It has seemed accurate though when comparing to my testing. Do you think it might need to be redone since I changed the ratio of acid to water? I wouldn’t have thought it would make a difference to the probe reading. Will chat to pb as he is actually really cluey about this chlorinator. He is not the one who set the 3:1 ratio btw that was the pool company guy. I might have to wait for the weekend to have a fiddle if I need to. Should I trust my testing over the chlorinator is really my dilemma? I think out of all the ccl tests the ph is the most subjective. I actually don’t mind the CYA test. It’s pretty obvious to me when the black symbol is gone. Hate relying on my eyes to tell me which shade of pink I have.
 
By the way, I did dump some acid in and have the filter going at the moment. Thought it better to go with my result and err on
the side of caution. It’s going to be annoying seeing the ph read super low on the chlorinator when I have become use to glancing at it multiple times a day to check on ph.
 
riley00dog said:
I was afraid you would say that! I didn’t calibrate the probe initially it was done by pbs guy.
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It is real easy to calibrate and you have a standard solution of PH 7.2 which comes with the CCL kit.

All you need to do is to remove the probe from the injection coupling (pump must be off of course..!) and just rinse it in some clean tap water then dunk it into the 7.2 standard for a minute or so.

Once in the solution for a minute or two - simply enter the PH probe calibration menu and enter an offset to make the display read 7.2 - Curious to see how far it is out by.

** BTW - When in the calibration menu, one of the questions is whether you want the pump to run or not, make sure you select OFF as you don't want the pump running for obvious reasons. This option is handy if you want to calibrate the probe in-situ using the pool water as your standard.

Mine has been rock solid with its readings, tracking my CCL kit measurements well.

Maybe this is why your auto dosing has not been operating well due to the probe's calibration being out?
 
I hope this doesn't mess you around, but the pH test is a colour test, so you can play around with quantity and number of drops. For me with CCL, I had to up the quantity a tiny bit (3 or 4 mm above the line) and use three drops instead of two, to get a bit stronger colour, and more fluid in the comparator. I also find I really need a white background. Just something to try if you feel like it.
 
Costas > DownUnder said:
It is real easy to calibrate and you have a standard solution of PH 7.2 which comes with the CCL kit.

All you need to do is to remove the probe from the injection coupling (pump must be off of course..!) and just rinse it in some clean tap water then dunk it into the 7.2 standard for a minute or so.

Once in the solution for a minute or two - simply enter the PH probe calibration menu and enter an offset to make the display read 7.2 - Curious to see how far it is out by.

** BTW - When in the calibration menu, one of the questions is whether you want the pump to run or not, make sure you select OFF as you don't want the pump running for obvious reasons. This option is handy if you want to calibrate the probe in-situ using the pool water as your standard.

Mine has been rock solid with its readings, tracking my CCL kit measurements well.

Maybe this is why your auto dosing has not been operating well due to the probe's calibration being out?
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Thanks. Will check it on the weekend. My auto dosing seems to be spot on since I fixed the dilution ratio and lengthened run times. I thought all was great until tonight. Will check the calibration though. You explained how to do it really well. Thanks [emoji4]

I just checked the chlorinator and it’s ph reading and it says 7.5. That’s close to where it should have dropped to after the acid I added as per pool maths. It might be the calibration. I will try and check it before the weekend if I can. Don’t have time to check by hand again tonight to see what I get with the ccl test since I have to be up in 6 hours. At least ph is down. It’s either 7.5 as per chlorinator or 7.8. I’m not nearly as stressed by these hiccups as I use to be. It will get sorted and I will make sure all levels are in check until it is.
 
needsajet said:
I hope this doesn't mess you around, but the pH test is a colour test, so you can play around with quantity and number of drops. For me with CCL, I had to up the quantity a tiny bit (3 or 4 mm above the line) and use three drops instead of two, to get a bit stronger colour, and more fluid in the comparator. I also find I really need a white background. Just something to try if you feel like it.
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Thanks. Will have a play around with the test. I definitely don’t feel overly confident with it yet. I did hold it up to the white wall and it seemed less dark pink when I did so.
 
Hmm, same thing tonight. Used both test kits again for confirmation and both a dark hot pink. Up over 8 I would say maybe even pushing 8.2. Chlorinator reading 7.6. Dumped 600ml of acid by hand and will try to stay up to recheck in half an hour. Definitely need to check the calibration. Knowing my luck it will read the standard solution spot on and I’ll be back to square one. Fingers crossed it’s way off... somehow. I have taken photos for my pb (of his test kit of course not the ccl kit lol) to show the discrepancy. I wonder how long this has been going on for? Trying to think back to the last time before last night that I physically checked the ph rather than relying on the chlorinator reading. Maybe a week. Sigh. Oh well. Good to know and will keep on top of ph until it’s sorted. Even if I have to pay Astral to send out a tech. They are Brisbane based so should be easy to organise.
 

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Small Pool Build - Brisbane, Australia ??

So testing dropped ph to 7.6. Pool maths says a .6 of a drop which would be right and mean that ph was 8.2 to start.

All sounds great and that it’s likely out by .4. However... the chlorinator read out only dropped to 7.2 from 7.6. Why is it not reading the .6 drop that pool math and my testing said it should? Only dropped .4.
 
Re: Small Pool Build - Brisbane, Australia ??

Costas > DownUnder said:
The response of the probe/sensor is not linear as the PH scale itself is not linear. So a drop of 0.4 PH from say 8.0 to 7.6 requires less acid than say a drop of 0.4 PH but starting at say 7.6 and ending up at 7.2.

You can check this in the poolmath calc by placing in some dummy figures for goal & current and see how much acid is required to be dosed.
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Ok thanks. I do understand what you are saying (this time)! Need to calibrate as soon as I have the chance. High school interview tonight for my eldest plus he’s not well. Been a crazy night here but glad I at least found the time to test and dose. Who needs sleep?!
 
kristmas said:
Wow, I thought that after you got an automated doser for the acid that you would be on easy street! I guess nothing comes easy, right? Hang in there!
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I know! Thanks for the moral support! It would be so much less drama not to have it at the moment. Hoping it’s an easy fix and just needs recalibrating. There has been one problem with another so I’m thinking something is not right with either the machine or the way it was initially setup. I am hoping it will be smooth sailing one day.
 
kimkats said:
IKNOW that is why I said it LOL

[emoji4]

GREAT!!! So sweet of him!
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He is a sweet guy who struggles to get these subbies to commit. The non contracted workers have all being great. Being here at least let’s my me understand that this is the way the industry is.

And another 500ml of acid added tonight. Ph wasn’t quite as high as last night but bumped it down to about 7.4 as I know it will rise quickly. At least it’s earlier in the night and not my usual midnight acid capers lol.

Jeff doesn’t like to run with the cover on the pool so having to remove the cover each evening for longer than I would like to let him do his thing. Watching my warm pool water evaporate into thin air [emoji31][emoji383]

Cross your fingers for me that this gets sorted tomorrow. If not hubby agrees that we should organise for the manufacture to come out. A month of this craziness is enough.
 

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