How do I get this under control?

rprim

New member
Mar 23, 2025
4
Denton, TX
Pool Size
8500
Surface
Plaster
Chlorine
Liquid Chlorine
Hi y'all. First time posting here.

For most of my life, I've maintained my own pool. Mainly used stabilized pucks, a little acid once in a while, bag of non chlorine shock once a week, and went on my way fat, dumb, and happy. Never bother much with CYA, calcium or alkalinity and pool was always clear and didn't mess with it more than once a week.

Two years ago moved back to Texas and built a new house and pool in the Dallas area. For two years, I've been using Pinch a Penny to maintain my pool since I travel for work almost every week. I also have a stand alone Bullfrog spa. I maintained that myself because the @ease cartridges need to be changed only every three weeks.

Recently got frustrated with Pinch a Penny and got rid of them. They didn't clean the cartridge in more than 14 months, haven't been brushing the pool, and the chemicals were all out of whack when I tested them. The monthly cost didn't justify the seven minutes a week they were here.

I've been following this forum for several weeks now and decided to use the TFP method to maintain the pool and spa.

The first thing I did was to drain about 40% of the water from the pool. The CYA 85 and I wanted to get it down in the 40 - 50 range.

I'm testing the Ph every day and it is constantly above 8.2. I use pool math to add MA but it returns back above 8.2 the next day.

I also noticed that the chlorine isn't holding. I raise it to around 5 ppm and the next day it is below 1.

So, here are the current readings from my TF-Pro test kit:

FC: 0.5
CC: 0.0
TA: 80-90
Ph: 8.5
CH: 150
CYA: 50

Last night I added non chlorine shock to bring the CC down from 1.0 to 0. (I know, next time SLAM instead of this stuff.)

Also added 8 lbs Calcium Hardness yesterday to start bring the CH up. Goal is around 300-350.
I've ordered Boric Acid but it hasn't arrived yet.


Here are my questions:
  1. What is causing Ph to be so high day after day? I've been putting MA in every day. Could it be from plaster being only 2 years old? It hasn't rained, there is no dirt in the pool, no new water added after the initial drain and fill. I also turned off the water features to reduce the aeration.
  2. I see that TA could be brought down to around 60. It seems like the TA isn't moving too much after I put in MA. Not sure if that is because the MA is old (bought last season) or if something is causing it to increase. Should I be focused more on TA now rather than Ph?
  3. I understand that chlorine is going to be reduced by the sun. The CYA is now low but 5 ppm in one day seems like a lot. With the TFP method, do I need to add liquid chlorine every day?
  4. I still travel all the time so adding liquid chlorine every day is not going to work. Is installing a SWG the only way to go, or dare I say use pucks and drain pool when CYA gets too high?
  5. I'm about to go on a ten day trip. I'm going to put a puck or two in the chlorinator to maintain the chlorine while I'm gone. That should bring the CYA up to around 54. Is there any kind of slow release chlorine that won't increase the CYA?
Thanks for any guidance!
 
Last edited:
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Hi y'all. First time posting here.

For most of my life, I've maintained my own pool. Mainly used stabilized tablets, a little acid once in a while, bag of Fresh and Clear (non chlorine shock) once a week, and went on my way fat, dumb, and happy. Never bother much with cya, calcium or alkalinity and pool was always clear and didn't mess with it more than once a week.

Two years ago moved back to Texas and built a new house and pool in the Dallas area. For two years, I've been using Pinch a Penny to maintain my pool since I travel for work almost every week. I also have a stand alone Bullfrog spa. I maintained that myself because the @ease cartridges need to be changed only every three weeks.

Recently got frustrated with Pinch a Penny and got rid of them. They didn't clean the cartridge in more than 14 months, haven't been brushing the pool, and the chemicals were all out of whack when I tested them. The monthly cost didn't justify the seven minutes a week they were here.

I've been following this forum for several weeks now and decided to use the TFP method to maintain the pool and spa.

The first thing I did was to drain about 40% of the water from the pool. The CYA 85 and I wanted to get it down in the 40 - 50 range.

I'm testing the Ph every day and it is constantly above 8.2. I use pool math to add MA but it returns back above 8.2 the next day.

I also noticed that the chlorine isn't holding. I raise it to around 5 ppm and the next day it is below 1.

So, here are the current readings from my TF-Pro test kit:

FC: 0.5
CC: 0.0
TA: 80-90
Ph: 8.5
CH: 150
CYA: 42

Last night I added non chlorine shock to bring the CC down from 1.0 to 0 (Leslie's Fresh and Clear.......I know, next time SLAM instead of this stuff)
Also added 8 lbs Calcium Hardness from Leslie's yesterday to start bring the CH up. Goal is around 300-350.
I've ordered Boric Acid but it hasn't arrived yet.


Here are my questions:
  1. What is causing Ph to be so high day after day? I've been putting MA in every day. Could it be from plaster being only 2 years old? It hasn't rained, there is no dirt in the pool, no new water added after the initial drain and fill. I also turned off the water features to reduce the aeration.
  2. I see that TA could be brought down to around 60. It seems like the TA isn't moving too much after I put in MA. Not sure if that is because the MA is old (bought last season) or if something is causing it to increase. Should I be focused more on TA now rather than Ph?
  3. I understand that chlorine is go to be reduced by the sun. The CYA is now low but 5 ppm in one day seems like a lot. With the TFP method, do I need to add liquid chlorine every day?
  4. I still travel all the time so adding liquid chlorine every day is not going to work. Is installing a SWG the only way to go, or dare I say use tablets and drain pool when CYA gets too high?
  5. I'm about to go on a ten day trip. I'm going to put a tab or two in the chlorinator to maintain the chlorine while I'm gone. That should bring the CYA up to around 54. Is there any kind of slow release chlorine that won't increase the CYA?
Thanks for any guidance!
In addition to above advice, post a picture of the pH test? Interpreting the color can be tricky sometimes.
 
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r,

If you travel a lot, then a Saltwater Chlorine Generator (SWCG) is the answer you are looking for...

You can go away for a week or two, and your pool will not even know you were gone... :mrgreen:

Saltwater pools are the easiest type of pools to maintain.

You also need to quit putting "magic potions" into your pool.. They are all hat and no rabbit...

Do NOT add Boric Acid until you have everything under control for a year.. Then decide if you really need it or not.

If my pool could not be a saltwater pool, I'd fill it in with dirt... :)

Thanks,

Jim R.
 
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Welcome to TFP.

How are you measuring CYA of 42 or 85?


Do a Overnight Chlorine Loss Test to see if your FC loss is due to am algae problem. If you fail then follow the SLAM Process

Do you have a spa spillover running or other water features causing aeration that raises your pH?
Thanks. I tested CYA with the recommended test kit but also took a sample to Leslie's to verify that I was reading the black dot test correctly. They provided the CYA of 42 and 85.

I will try the overnight chlorine test.

No spillover spa but there is a waterfall. I turned that off a week ago so it is not creating any aeration.
 
We have no interest in what Leslie tells you.

Please provide all test results from your test kit. All CYA tests are rounded to the next 10. If the dot disappears between 50 and 40 you call it 50 and move on.
 
Thanks. I ordered a digital Ph tester along with the TF-Pro. They are pretty consistent and verified with a test at Leslie's to make sure.
Sometime the digital is accurate as long as it calibrated regularly, stored properly, and cleaned people. Leslie’s testing…not so much.
 

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