Opened pool and problems...

[Watermom]

Run tests again this evening when the sun is off the pool and post numbers again. Dead algae will look grayish. Are you running the pump 24/7? Is your filter pressure rising? Did you add more DE? Is the water any better in the past few days?

[PoolDoc]

A couple of comments:

• I've often seen pools look like that when the algae was dead / dying.
• You need to be VERY careful to double rinse your chlorine tube after testing for CC! Any carry-over of R-003 will cause your FC test to include some or all CC.
• High CC and low FC after adding chlorine are typical of pools with lots of ammonia.

Ben

[chumpy36]

Run tests again this evening when the sun is off the pool and post numbers again. Dead algae will look grayish. Are you running the pump 24/7? Is your filter pressure rising? Did you add more DE? Is the water any better in the past few days?

Just tested...

FC 11ppm
CC 5.5 ppm

Pump is going 24/7
Filter pressure is rising and yes I'm using DE but not more than the amount I determined to be the correct amount.

Hit it again? Get it up to 15 again?

Thanks

[chumpy36]

A couple of comments:

• I've often seen pools look like that when the algae was dead / dying.
• You need to be VERY careful to double rinse your chlorine tube after testing for CC! Any carry-over of R-003 will cause your FC test to include some or all CC.
• High CC and low FC after adding chlorine are typical of pools with lots of ammonia.

Ben

Ben,

That's helpful. I'll make sure I rinse well. Problem is now that with all these weird tests and such I'm running out of R-0871. I have some on order but it won't be here for a bit.

Thanks!

[cyclingbro]

I am not an expert, but liquid chlorine may help. After I started heating the pool I had chlorine loss and a cloudy algae build up. The liquid chlorine cleared it in minutes and returned it to normal levels. I used 2 gallons in a 25k pool. I did not start off as bad as your pool was though. Good luck.

C

[aylad]

I am not an expert, but liquid chlorine may help. After I started heating the pool I had chlorine loss and a cloudy algae build up. The liquid chlorine cleared it in minutes and returned it to normal levels. I used 2 gallons in a 25k pool. I did not start off as bad as your pool was though. Good luck.

C

just to clarify, this poster is using liquid chlorine........aka bleach. Both are sodium hypochlorite--the bleach is 6% strength, and the other is 12%. The 12% version is not available in all states.

Janet

[chumpy36]

ok, the last two days of testing seem to indicate the chlorine levels have stabilized a bit. I think.

Two nights ago, the readings were

FC 11ppm
CC 5.5 ppm

I added bleach in the amount the pool calc said would get me to 15 but either my volume is off or I made a mistake in the form. The next evening (last night) the readings were:

FC 19ppm
CC 0

This morning I tested again and it was:

FC 15ppm
CC 1

Pool is still very cloudy. Doesn't seem to be improving much. Pump pressure does rise. I am using DE in addition to the sand. I'm wondering if at this point the filter needs the sand replaced or maybe is channelled. The pool sand was replaced 6 years ago.

Any ideas about what to do now?

Thanks

[Watermom]

You don't need to replace the sand. I think I am on my 10th season with the same sand. Poconos and CarlD also have the same sand that they have used for at least that long. Not sure about Aylad. At any rate, I think your sand is probably fine.

Can you post a total set of your other numbers? This thread is getting pretty long. I'm sure you gave us all the numbers before, but we are now on the second page of this thread and it is difficult to have to look back so far. Give us current alk, cya, calcium hardness and pH again please.

At this point, are you adding anything other than bleach? Are you running your pump 24/7?

Take a look at this link:
http://www.poolsolutions.com/gd/100-...ool-water.html

[aylad]

My current sand is 2 years old, but only because I replaced my filter at the beginning of last season. The sand in the old one was 7 years old and still doing fine. Had some issues with the filter due to improper installation by the company that installed my pool.

Janet

[chumpy36]

Ok here is the new set of number taken last night....
FC 13
CC 1
PH 7.6
TA 220
CH 50 (I think - the test wasn't really definitive for me. When I added the 5 drops after the 20 drops of calcium buffer it didn't really turn red, more a hint of pink if that)
CYA 20-25

I have not added anything other than Bleach and one box of borax since we started this process. Pump is going 24/7

Thanks