Algae problem maybe

[kimkats]

I would not test the CYA until you get the water all the way back up. I would keep adding bleach and stirring it in good. Keep brushing the pool to keep the algae stirred up so the bleach can kill it.

How long until you get the water up?

Kim

 

[CtP]

Water is a over skimmer level and I stopped filling. Added a gallon of bleach and will retest CYA in am.

 

[kimkats]

Are you running the pump? If not please go turn it on.

Kim

 

[CtP]

Pump ran all night. CYA this morning was 150. Back to draining.


not sure why I can’t rotate it. sorry.


View attachment 43280

 

[Catanzaro]

My pictures are rotated when I e-mail them from the smart phone to my computer. I then rotate the pictures, save them and upload. Hope this helps!

 

[kimkats]

Getting closer. Keep it up. It did not happen over night so it will take some time to correct.

Kim

 

[tim5055]

Pump ran all night. CYA this morning was 150. Back to draining.

I was going to say don't get discouraged if the CYA comes back high still. The basic CYA test has about a 5-10% error rate and when you do the double dilution test you also double the error rate.

I started around 250. It's doable, stick with it.

 

[CtP]

Thanks Tim and Kim.

Should have thought of that Catanzaro. I’ll give it a shot.

I’ll do another CYA test after dinner. Pools almost full.

 

[CtP]

So after 5 drain and refills the pool is beginning to clear up even though it’s still green in the deep end. Latest test results.

CYA - 60
FC - 5
CC -.5
TC - 5.5
TA - 120
PH - 8.2

Based on the Chlorine/cya chart I need to bring shock level up to 24ppm, which equals about 6 gallons of 8.25% bleach.
What would you suggest to do about PH, muriatic acid?? Pool math recommends to add 84 oz of 31.45% muriatic acid or dry acid.

Would muriatic acid be best since it’s a liquid?

 

[Texas Splash]

Exactly! Acid to lower pH "first", then (after 30 min of mixing) increase FC to 24. Great job on that CYA!

 

[CtP]

Exactly! Acid to lower pH "first", then (after 30 min of mixing) increase FC to 24. Great job on that CYA!

Thanks Texas Splash!

Question on SLAM, recommends to test often, no less than 2x per day. Is there a way to cut back on amount of regent used in drop test?

 

[Texas Splash]

For testing FC so often, you do have the option to go from testing 10ml to 5ml. Use the 5ml sample, then multiply each drop count by 1. It's not as precise, but it helps. Not a bad way to test FC in the beginning of a SLAM, then you can go back to the 10ML multiply drops by .5 near the end which is more precise.

 

[CtP]

Thanks again TS!

Gonna pickup MA tonight and start SLAM once the ph is lowered.

Here is what’s settling on the bottom. Any ideas.
View attachment 43355

 

[Texas Splash]

Little hard to tell from the pic, but it appears to be green/algae. Does it brush away fairly easy like a cloud, or does it appear more like a stubborn stain that needs scrubbing? Either way, with any compromise in FC over time, it's been warm enough these past few days to be algae that's for sure. Bleach at the correct SLAM level will kill the algae. If the stain remains after you pass your SLAM, let us know and we'll tackle that separately.

 

[CtP]

SLAM in progress

Third day into SLAM. Green is gone just waiting for cloudiness to clear up and then do overnight test.

Thanks for all the help!

 

[Catanzaro]

If you go to "Go Advanced", you can remove the second pictures that is sideways.

Great job. Pool looks great. Please remember that you are not done with the SLAM until all 3 tests are passed!

 

[pabeader]

Three days too blue?!?!? Sweet! Now comes the hardest part. Keep it up until you can see the screws on the bottom drain!

This gives a good example of what clear looks like:

Cloudy pool

 

[CtP]

Still SLAMMING! Waiting to do overnight test ‘till cloudiness is gone. Can’t wait to see the screws! Too bad we’re closing the pool for the winter. Oh well, something to look forward to in the spring.

this morning’s test

FC- 24
CC- 0