Time to replace sand?

[jonno]

Roger that and thanks! I'll stay the course and keep posting my numbers.

[jonno]

Evening report:
FC 2.3
CC 0.4 (tested twice to confirm both FC and CC)
pH 7.2 / 7.4
TA 190
After pulling the water sample, I added 1 pint acid, brushed the walls and bottom. Visibility unchanged over past two days (about 2'), then added 6 gallons of bleach. Still have scattering of light foam on the surface.

Since the CC was 0.4, I should up the bleach according to your post earlier today. How much?

Do you have any guess at the timeframe until this treatment clears the water up - days weeks?

I have questions about maintaining the pool with CYA so high (somewhere way over 100), but I'll wait until I get to that point before asking. Thanks!

[jonno]

Disregard yesterday evening's water tests! I messed up. Here are the morning numbers:
FC 0.5
CC 3.5
pH 7.2 / 7.4
TA 180
Since the pH is still up, even after last nitght's pint, I'll add another pint of acid this morning. No change in visibility. Still have scattering of light foam on the surface. Water is starting to look more green than blue - could it be another algae bloom?

[CarlD]

Remember to approach adding chemicals conservatively. Usually, bleach/chlorine is the exception but given your unusual circumstance even that should be done with care. Your FC is down so you need to raise it to the level Ben recommends.

Carl

[jonno]

Thanks Carl. Ben's chart shows that given my CYA of 100 to 200, my FC level should be 8 to 15 ppm). However, I have a lot of ammonia so Ben gave me a treatment plan to follow until the CC is down to 1 or 2. The interim plan is to add 6 gallons of bleach every evening, add a pint of muratic acid when the pH creeps above 7.0, and keep aerating.

[jonno]

Evening numbers - pool color is changing from blue to yellow green!
FC 0.0
CC 3.0
pH 7.2
TA 180
I added another pint of acid this morning and will get some more tomorrow to keep the pH low, but today the color of the water no longer has any blue coloration and is more lemon lime. Visibility is still only 20-24 inches. This is nerve-racking. I really don't want to replace the water. Ben, Janet, Watermom - is there anything else I should be doing?

[jonno]

Morning report - color still yellow green, little bit of foam on surface. Still aerating and adding 6 gallons of bleach nightly.
FC 0.0
CC 2.5
pH 7.2
TA 180
Happy Father's Day everyone who is or has a dad.

[jonno]

Here is a photo of my pool taken this morning. This is the BEFORE photo.

I've spent the past two weeks working to eliminate the excess ammonia and lower the TA - this was not a process where progress is visible.

Now that Ben has increased the evening dosage of bleach to shock levels (considering my high CYA), there should be some visible progress as the algae and visibility problems resolve.

I'll post an AFTER photo as soon as everything is balanced and clear. This is day 33 since opening the pool - wish I'd never gone to the pool store...

[jonno]

Evening numbers:
FC 4.0
CC 2.0
pH 7.2 (added 1 pint of m. acid)
TA 170
Evening bleach dose = 9 gallons