Cannot get a Chlorine reading

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B

bfisher77

Active member
May 21, 2021
44
Massachusetts
Pool Size
26000
Surface
Vinyl
Chlorine
Liquid Chlorine
Hi,

I have tried shocking my pool to unlock the chlorine, but I can’t seem to get the chlorine levels to maintain? I’m wondering if my CYA level is too high? I don’t want to keep wasting money dumping shock into the pool senselessly. I attached my current water analysis results. I have an 18x36 Inground with a vinyl liner. Thanks!
 

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Hey B and belated Welcome !!!

Your pool store test shows exactly why we won't advise from them. I spent half the summer at 80 CYA, on purpose, with no issues holding chlorine. 'Chlorine lock' is made up nonsense to explain their complete lack of water chemistry knowledge.

Have a read, purchase a reliable home kit, and report back.

Test Kits Compared

In the meantime, download PoolMath and add 5ppm chlorine a day until the kit comes. It'll help it from getting exponentially worse. (Walmart pool essentials chlorinating liquid, not the CYA adding tabs/shock you have been using)
 
Newdude said:
Hey B and belated Welcome !!!

Your pool store test shows exactly why we won't advise from them. I spent half the summer at 80 CYA, on purpose, with no issues holding chlorine. 'Chlorine lock' is made up nonsense to explain their complete lack of water chemistry knowledge.

Have a read, purchase a reliable home kit, and report back.

Test Kits Compared

In the meantime, download PoolMath and add 5ppm chlorine a day until the kit comes. It'll help it from getting exponentially worse. (Walmart pool essentials chlorinating liquid, not the CYA adding tabs/shock you have been using)
Click to expand...
I will do that. Thanks so much for your help!
 
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bfisher77 said:
I am ordering the Taylor Kit
Click to expand...
If it's not too late, the 2 kits from TFtestkits.net are no brainer values over the comp priced Taylor kits, all using the same Taylor drops.

I broke them down here :

Looking to buy a test kit, need advice...

I am looking to buy a test kit. My pool details are provided below: 13,500 Gallons Pebble Finish Jandy 2.7 HP VS FloPro Jandy 200 Sqft Cartridge Filter Jandy TruClear SWG Jandy 103k BTU VersaTemp Heater K-2006C-SALT Test Kit (Planned). I have researched this topic briefly and am interested in...
www.troublefreepool.com www.troublefreepool.com
 
Newdude said:
If it's not too late, the 2 kits from TFtestkits.net are no brainer values over the comp priced Taylor kits, all using the same Taylor drops.

I broke them down here :

Looking to buy a test kit, need advice...

I am looking to buy a test kit. My pool details are provided below: 13,500 Gallons Pebble Finish Jandy 2.7 HP VS FloPro Jandy 200 Sqft Cartridge Filter Jandy TruClear SWG Jandy 103k BTU VersaTemp Heater K-2006C-SALT Test Kit (Planned). I have researched this topic briefly and am interested in...
www.troublefreepool.com www.troublefreepool.com
Click to expand...
I am going to order the TFpro I guess. Do you think I should add the SLAM option? Which stirrer should I choose?
 
bfisher77 said:
Do you think I should add the SLAM option?
Click to expand...
Being unable to hold chlorine usually points to algae. (It's microscopic so you can't see it until it's way too late). The SLAM Process needed to clear algae uses alot of FC tests.

Coupled with being new and needing to test more often to get to know your pool even if you dont have algae, yes. I think it's a good idea. :)





bfisher77 said:
Which stirrer should I choose?
Click to expand...
The rounded smart stir fits the TFpro case. Though I imagine you could cut the foam for the rectangular speed stir.
 
Newdude said:
Being unable to hold chlorine usually points to algae. (It's microscopic so you can't see it until it's way too late). The SLAM Process needed to clear algae uses alot of FC tests.

Coupled with being new and needing to test more often to get to know your pool even if you dont have algae, yes. I think it's a good idea. :)






The rounded smart stir fits the TFpro case. Though I imagine you could cut the foam for the rectangular speed stir.
Click to expand...
Thanks for your help. I order the TFPro with SLAM and Smartstir
 
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They ship pretty quickly. Should get it in a few days.

You can add about 4ppm of liquid chlorine until then to account for daily loss. Download the Poolmath app, configure your pool and use "effects of adding" to figure out how much that is for your pool. Once you get the test kit, post a full set of results and someone can guide you on what to do next.
 
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Parac said:
They ship pretty quickly. Should get it in a few days.

You can add about 4ppm of liquid chlorine until then to account for daily loss. Download the Poolmath app, configure your pool and use "effects of adding" to figure out how much that is for your pool. Once you get the test kit, post a full set of results and someone can guide you on what to do next.
Click to expand...
Ok, so how often should I be adding the 4ppm of liquid chlorine before I test. I attached what Poolmath calculated for my pool.
 

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Add a gallon every day. Be sure the pump is running when you add it. Pour it slowly at a return to the pool.
 

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