New Pool

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dsilchenstedt

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May 24, 2015
94
Corpus Christi tx
I have moved and now have an in-ground triangle shaped pool about 10,000 gallons. The pool turned green and when I spoke to the pool maintainance man he didn't know anything about the pool. all he did was hold up a chlorine test strip and say "the pool has no chlorine, I'm going to dump a lot in." Two days later I get my test kit from storage and my results are as follows:
FC 30
CC 3
TC 33
CA 425
TA 40
CYA 60

No chlorine has been added to the pool since his initial dumping in of chlorine by this pool guy. I called the rental management and they asked me if I was interested in maintaining the pool, I said okay. I'm going to go out later and figure out the type of pump and size. Only change i've made so far is to change the pump time from 3pm-8pm to 12pm-8pm. The guy must have dumped a ton of chlorine in this thing for the levels to still be 30 in the south Texas summer sun 2 days later.

The pool is now blue but cloudy. I am going to let the FC come down to suggested levels for shock then do an over night test to make sure all organic material is dead. Would you guys suggest any thing else based off my results?
 
dsilchenstedt said:
I have moved and now have an in-ground triangle shaped pool about 10,000 gallons. The pool turned green and when I spoke to the pool maintainance man he didn't know anything about the pool. all he did was hold up a chlorine test strip and say "the pool has no chlorine, I'm going to dump a lot in." Two days later I get my test kit from storage and my results are as follows:
FC 30
CC 3
TC 33
CA 425
TA 40
CYA 60

No chlorine has been added to the pool since his initial dumping in of chlorine by this pool guy. I called the rental management and they asked me if I was interested in maintaining the pool, I said okay. I'm going to go out later and figure out the type of pump and size. Only change i've made so far is to change the pump time from 3pm-8pm to 12pm-8pm. The guy must have dumped a ton of chlorine in this thing for the levels to still be 30 in the south Texas summer sun 2 days later.

The pool is now blue but cloudy. I am going to let the FC come down to suggested levels for shock then do an over night test to make sure all organic material is dead. Would you guys suggest any thing else based off my results?
Click to expand...
Refresh your memory and reread the SLAM Process article. Let FC drop to 24 and maintain it there until the water is clear and the CC is .5 or less. Then do the overnight loss test. Brush and vacuum until your arms can take no more. Remember: SLAM is Shock Level And Maintain. It's not a one-time megadose of bleach.
 
Thank you guys. I forgot the correlation between FC and CC needing to be 0.5 or less, ill focus on that. The FC has been at least 30 for two days and I found huge chunks of chlorine pucks in one of the baskets. This pool guys must have just dumped an insane amount of chlorine in this pool...I'll let it FC's come down and then maintain FC at 24 while watching CC's. Now I gotta go brush before work. So glad to have a pool to maintain again. Can you guys refresh my memory on how I follow a thread?
 
my new numbers results
FC: 11.5
CC: 0.5
TC: 12
CA: 325
TA: 40
CYA: 60

Should I wait until FC is at maintenance level before making other changes, such as, bringing TA from 40 up to recommended target of 80? Once I bring Alkalinity up I'll adjust the Ph to 7.4. Does this sound like a sound over all pool plan? Once this is done I'll just start to maintain.

I am being forced to use Trichlor tabs for most of the summer, the complex has two tubs of them and they want me to use this before I switch to liquid bleach 10%. I'm a little concerned about CYA's increasing but that's where we are at.

For now chemicals being used are:
sodium bicarbonate (baking soda)
soda ash
trichlor tabs
 
If you are going to use tabs you will need to plan to drain water when your CYA hits 60 to take it back to 40.

You will also need to add liquid chlorine as necessary to maintain your FC based on [FC/CYA][/FC/CYA]. The tabs will not put enough FC in. And the FC needed will increase as you use more tabs.

You should keep your TA higher as the tabs are very acidic.

Maintaining your pool this way will be like trying to dance on a knifes edge.

Good luck.
 
I have gotten approval to switch to 10% bleach and have been doing this for a few weeks now. I feel the pool is eating more bleach than it should but the overnight showed no change....it is mid summer and crazy hot with the pool in direct sun for 10+ hours a day. Hoping you guys can look at my log and tell me where I can tweak things a bit.
View attachment Pool.txt

Before I took control the "professional" dump an insane amount of Trichlor tabs into the pool and raise my CYA from 60 to 80. Now I am planning on draining 25% of the pool to get this and the Calcium levels down. Other than that, the pool looks great. So my problem areas are CYA, and bleach consumption. I don't know my plumbing and I am hoping you guys can help me sort out the in line valves and what they do? I can't drain until I know what valves do what, see picture.
Pool1.jpg
 

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dsilchenstedt said:
I have gotten approval to switch to 10% bleach and have been doing this for a few weeks now. I feel the pool is eating more bleach than it should but the overnight showed no change....it is mid summer and crazy hot with the pool in direct sun for 10+ hours a day. Hoping you guys can look at my log and tell me where I can tweak things a bit.
View attachment 83649

Before I took control the "professional" dump an insane amount of Trichlor tabs into the pool and raise my CYA from 60 to 80. Now I am planning on draining 25% of the pool to get this and the Calcium levels down. Other than that, the pool looks great. So my problem areas are CYA, and bleach consumption. I don't know my plumbing and I am hoping you guys can help me sort out the in line valves and what they do? I can't drain until I know what valves do what, see picture.
View attachment 83650
Click to expand...
That's a text file and so it is unformatted. I can't make sense of it.

Instead of telling us the pool is using insane amounts of bleach, how about telling us how much that is? Even better if you give it as ppm.

The plumbing, left to right

returns, pool cleaner, intake, intake, intake. You'll need to shut the valves off one at a time to determine which valve goes where. One will go to the main drain. The others to skimmers.

When you've isolated the skimmers and have them off yet the pump is still pumping and showing (probably reduced) pressure, then you've found your main drain valve.
 
Since your in Corpus and it’s been hot and you have full sun. You should expect to loose between 2-4 ppm of FC a day depending also on how many people use it as well.

I’d consider a switch to a swcg so you don’t have to dose everyday with liquid chlorine.
 
SpringPool said:
I’d consider a switch to a swcg so you don’t have to dose everyday with liquid chlorine.
Click to expand...

That's not an option since it is a six-plex rental but I appreciate the recommendation.

Thank you for letting me know a 2-4ppm drop is common, felt like a lot to me.

On a positive, the pool is so clear, everyone keeps telling me how great a job I am doing. Thank you all who have helped educate me in this subject, I am grateful to you all.
 
mknauss said:
Sorry, but I cannot follow the file you attached.

Any way you can use the Pool Math app and then you can easily upload data.
Click to expand...

I am already using Pool Math. The text file is what Pool Math created when I saved the file. So now I found a work around to create a PDF of the same data in the text file.
View attachment Results.pdf

Thanks for letting me know it wasn't readable. also, thanks for the intake help.
 
Your FC is dropping below minimum based on your CYA, use [FC/CYA][/FC/CYA]. Increase the amount of chlorine you are adding each day so that when you test the next day your FC is always well above minimum FC.
 
Thank you for all you guys help. My pool is doing great, should be all set. Only other thing is cleaning the tile along the edge; i'm using pumice stones but it isn't quite cutting it, any suggestions to help get it looking good? I believe its a mix of calcium and sunscreen/body scum. Links to products appreciated.
 
You can use a diluted muriatic acid solution for the scale. 4 parts water 1 part acid. It works but it is slow. Wear eye protection. Or there are services that do kieserite blasting. Not sure if Corpus has one.

Scum can be taken off with magic eraser or other scrubby type things.
 
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