Pentair SWCG IC40

[waterwhole]

Thanks, I'll turn those on also.

 

[waterwhole]

15 at 4:18p*
14.5 at 4:39p*
15 at 5:04p*
16.5 at 5:26p*
13 at 7:02p*
13.5 at 7:43p**
17.5 at 8:47
17 at 9:53

* chlorine added to restore 16ppm
** chlorine added and water features turned on.

This is longest it's held chlorine will continue to test a couple more times, ill leave the pump on and perform OCLT again.

 

[waterwhole]

I just tested it again and my FC jumped up to 20.5, I didn't add any chlorine and my swcg is set to 1 percent output. Does this make any sense?

 

[BDY]

Scrub everywhere - autofill, light fixtures, ladders, inside of ladders, umbrella posts, vacuum lines, pump basket. Skimmer, weir door etc etc

Algae is very sneaky at hiding

 

[waterwhole]

Went from 17 last night to 12 this morning at 7am.

Also tested CC and that is at 0.

Any clues as to what I am fighting?

 

[mknauss]

That is significant loss. What does the water look like?

 

[BDY]

Testing last night was full dark? And you don’t have any sort of uv/ozone on the system?

You might try assuming your cya is higher than it is if it’s testing uncertainly. Eg 60 vs 50 or 40 vs 30.

Also you’ve checked every possible hiding place especially those which you would never consider? Including rafts, pool toys and covers?

Just thinking out loud…

 

[waterwhole]

That is significant loss. What does the water look like?

Water is crystal clear, was clear the entire team.

Testing last night was full dark? And you don’t have any sort of uv/ozone on the system?

You might try assuming your cya is higher than it is if it’s testing uncertainly. Eg 60 vs 50 or 40 vs 30.

Also you’ve checked every possible hiding place especially those which you would never consider? Including rafts, pool toys and covers?

Just thinking out loud…

Full dark I have led lights but those were already off when I tested it. Just a SWCG (disabled) chlorinator (empty), no UV or ozone. This pool is less than 4 weeks old. No ladders, no toys in the pool, I have the nichless lights.

I think I might have a spot of black algae but I scraped on it and it didn't give.

 

[mknauss]

Something does not add up.
There is either interference or error in testing the chemistry.

 

[SecoSteve]

Try cleaning your testing vial and stir bar with alcohol, and then rinse clean.

Also, open up the chlorinator and check inside for algae.

 

[waterwhole]

Thanks, I am doing this while working from home so my test is as follows.

Add 10 drops mix. Add 10 drops mix, then 2 drops mix, when the color starts to change then 1 drop at a time.

I did a thorough brush then tested FC was at 16, came home after 1hr 45 FC is at 18.

Let me know if there is anything I need to change.

 

[mknauss]

Add 10 drops mix. Add 10 drops mix, then 2 drops mix, when the color starts to change then 1 drop at a time.

What test are you speaking of?

 

[Rancho Cost-a-Lotta]

Just a couple of tips...

Rinse sample vials with pool water before and after use. With a small sample size, even a bit of fresh tap water can skew results.

Make sure your sample sizes are exactly the same each time.

When using droppers, keep the bottle vertical. Squeeze only enough to allow the drops to just fall off the tip.

Go slow between drops (about 1 second between) and watch closely for color changes.

 

[BDY]

a speedstir would help the consistency tremendously!

 

[waterwhole]

a speedstir would help the consistency tremendously!

Ordered

What test are you speaking of?

FC DPD test

Just a couple of tips...

Rinse sample vials with pool water before and after use. With a small sample size, even a bit of fresh tap water can skew results.

Make sure your sample sizes are exactly the same each time.

When using droppers, keep the bottle vertical. Squeeze only enough to allow the drops to just fall off the tip.

Go slow between drops (about 1 second between) and watch closely for color changes.

I have been rinsing with tap and letting it air dry, just rinsed my entire test kit with isopropyl alcohol. I have been using a dropper bottle to fill the test cylinder at 10ml each time.

 

[mknauss]

FC DPD test

You are using a DPD test, and not the FAS DPD?

FAS-DPD Chlorine Test

The FAS-DPD chlorine test is used to find the level of Free Chlorine in the … Read more…

www.troublefreepool.com

 

[mknauss]

Ordered

Your signature says a TF100 Pro. The TF100 did not come with a SmartStir. The TF Pro does. Which do you have?

 

[waterwhole]

I got that wrong let me update that to have, I bought the TF100 Salt kit

 

[waterwhole]

Your signature says a TF100 Pro. The TF100 did not come with a SmartStir. The TF Pro does. Which do you have?

my bad TF 100 Salt.

You are using a DPD test, and not the FAS DPD?

FAS-DPD Chlorine Test

The FAS-DPD chlorine test is used to find the level of Free Chlorine in the … Read more…

www.troublefreepool.com

FAS - DPD

 

[mknauss]

Add 10 drops mix. Add 10 drops mix, then 2 drops mix, when the color starts to change then 1 drop at a time.

FAS - DPD

That test procedure has nothing to do with a FAS DPD test