Fresh fill questons

[SCon36]

I recently had to empty my pool for some maintenance and now have the pool refilled and circulating. After adding some bleach, here are my numbers.

FC- 3.6
CC- 0
pH- 8.0
total alk- 200
cya- 0
CH- don't remember the number but was well within range

I am now adding cya using the sock method. Caution, always check that old sock for holes before filling. Now I'm using the double sock method.

With heavy rain forecasted in the Ohio valley tomorrow and the addition of cya, should I leave the pH and alkalinity alone or go ahead and make adjustments?

 

[JasonLion]

Lower the PH to 7.2, and add 2 ppm of chlorine this evening. Then tomorrow start targeting an FC level appropriate for the CYA level you are targeting.

 

[pooldv]

LOL! You get credit for inventing the double sock method!!!

 

[Patrick_B]

Welcome to a new pool season Scon

I like the double sock method.

With your TA, and pH, I would like to see your CH number. Better to be safe than sorry on that one...

 

[Divin Dave]

CH is fine.. Vinyl pool really dont care what it is, as long as it isnt extravagantly high.

 

[Patrick_B]

The vinyl wasn't my concern.

 

[SCon36]

CH was 200. After I looked back at the acceptable range, I remembered my number.

 

[Patrick_B]

Awesome, no worries then. It was the unknown I was curious about. Thank you.

 

[SCon36]

Round 2 of the double sock CYA addition. I'm playing it conservative after having high CYA issues last summer.

 

[SCon36]

Here are my latest numbers. Still working on TA as you can see.

FC- 6.5
CC- 0
pH- 7.4
total alk- 170
CH- 200

I have both return jets aimed toward the top of the water and my slide going. Aeration is in progress. Anything else I should do for TA?
cya- 35

 

[Patrick_B]

That's fine, just keep plowing. You might want to bump your Cya to 40-50, but just keep at it.

 

[pooldv]

Nope that is the best way to lower TA. It works, I've had to do it a few times.

 

[SCon36]

Ok, I have added a lot of acid to this pool. Over the course of the last week or so, I've added two gallons of 31.45% muriatic acid and then some ph down dry acid. The ph will drop to 7.6 or so, but always go right back to 8 within the next day. TA stays between 170-200.

My FC is 6 and CYA is still about 35. I've also been working to bring it up a little.

 

[Azgirl71]

As your TA lowers your PH will stabilize. Just keep bringing the TA down with MA. This will lower PH too, but you can aerate PH back up to drop TA again.

 

[Isaac-1]

Remember the CYA is acidic so as it dissolves pH will go down some.

 

[SCon36]

Things are finally starting to fall in line. My pH is 7.6 and TA is 130. The pH will rise a little over a few days, but TA has been holding steady at 130. Added a little more acid just a little bit ago. Come to find out, my local small town hardware store has the best price on muriatic acid. It's the good stuff with a good date. Can't beat that. And, they're just a few minutes down the road. WIN!

 

[SCon36]

Here's a picture. I've been pretty happy with the way it looks since I pulled off the cover.


Sent from my iPhone using Tapatalk

 

[ulrichsd]

Nice job, beautiful pool!

20x40' inground concrete pool
approx 30,000 gallons
1.5 hp hayward pump
refinished spring 2015