The pool store had me dumping crazy amounts of shock into pool last year.it was calcium hypo and created all sorts of promblems until winter showed up and I gave up. I’m seeing too high of chlorine can damage. Question is what do I look for? I have something on the walls I thought was scale now I’m wondering if it’s something else?
Concerns of fiberglass pool wall being damaged
- Thread starter Mike saucier
- Start date
- Jun 22, 2014
- 47,797
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Welcome to TFP! 
Probably best we start with two things:
1 - Full set of water test results
2 - Some pics of the discolored areas
Pool Care Basics
Probably best we start with two things:1 - Full set of water test results
2 - Some pics of the discolored areas
Pool Care Basics
- Jun 22, 2014
- 47,797
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
That depends on your other levels. That is why teh test results are so important. See FC/CYA Levels.
- Jun 22, 2014
- 47,797
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Okay, so those appear to be store tests or something. Not from a TF-100 or Taylor K-2006C that we recommend and provide advice upon here. Having said that, "if" your CYA is actually 50, you can see on the FC/CYA Levels (SLAM tab) that you can safely be as high as 20 pm. An FC of 8 is nothing to worry about.
I do appreciate the advice. Which of these test kits are the easiest to use. My concern is still from last year. I remember adding like 12lbs of cal hypo at one time. What would oxidation look like on the pool walls? Could I have damaged?
- Jun 22, 2014
- 47,797
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
The TF-100 (link in my signature) is a great buy. Stocked with Taylor reagents at a better volume and price. As for the oxidation, it's hard to know if it's from the cal-hypo specifically. Gelcoats can at times undergo unexplained changes like a chalky look below the waterline that is not calcium scale. Similar in appearance to oxidation I suppose. You can see my experience below and compare to what you have or may have tried.
www.troublefreepool.com
www.troublefreepool.com
Swimming Pool Test Kits Compared
What pool test kit should I buy? Why not use test strips? Our recommended test kits will pay for themselves in no time!
www.troublefreepool.com
Fiberglass Discoloration (Faded & Chalky) - My Story
DISCLAIMER The following is a dialog of my own personal experience. Any processes used, chemically or otherwise, were performed strictly on my own without any recommendations from Trouble Free Pools. FUTURE POSTING I am trying to keep this thread streamlined with just my own progress for all...
www.troublefreepool.com
These test kits only go up to 10pm. Some of the slams are up to 30ppm. How are you guys measuring these peaks in shocksThe TF-100 (link in my signature) is a great buy. Stocked with Taylor reagents at a better volume and price. As for the oxidation, it's hard to know if it's from the cal-hypo specifically. Gelcoats can at times undergo unexplained changes like a chalky look below the waterline that is not calcium scale. Similar in appearance to oxidation I suppose. You can see my experience below and compare to what you have or may have tried.
Swimming Pool Test Kits Compared
What pool test kit should I buy? Why not use test strips? Our recommended test kits will pay for themselves in no time!
Fiberglass Discoloration (Faded & Chalky) - My Story
DISCLAIMER The following is a dialog of my own personal experience. Any processes used, chemically or otherwise, were performed strictly on my own without any recommendations from Trouble Free Pools. FUTURE POSTING I am trying to keep this thread streamlined with just my own progress for all...
- Jun 22, 2014
- 47,797
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Both the TF-100 and Taylor K-2006C have a sub-kit called the FAS-DPD (powder & drops). It will measure FC up to 40 or more. It is very precise and we recommend using the FAS-DPD over the typical TO viewer.
- Jun 22, 2014
- 47,797
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
The tf 100 or the taylor 2006 series include a chlorine test using fas-dpd. It has no limit on the chlorine level.
Welcome to TFP!
1 - Full set of water test results
2 - Some pics of the discolored areas
Pool Care Basics
Attachments
- Jun 22, 2014
- 47,797
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Mike, we would recommend you don't try to do too much based on those test results. Store testing is very unreliable and you could end up doing a yo-yo game with chemicals. You should add some liquid chlorine each day though, about 4-5 ppm worth in your situation. The PoolMath APP can help you with dosage amounts. Once you receive your test kit, post your numbers and we'll get busy with everything.