Phosphates

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lavndrocean said:
Oh lol ok good to know!
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The T-940 is the extended life version of the T-15. It’s built a bit more robustly and so in theory you should get more life out of it. It’s rated to produce 725lbs of chlorine before it fails as opposed to 580lbs that the T-15 is rated to produce over it’s lifetime. The T-940 is supposed to only be sold to certified Hayward installers and so that’s the only way your supposed to be able to get one. I have one, it’s been fine for the past 3 years and hasn’t given me any issues. In pool math just use T-15 for all your calculations. The only time it’s really going to matter is when it eventually fails, and when that happens if you can’t find one, just look to replace it with a T-15.
 
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lavndrocean said:
We actually had the SWCG off for 3 days and it's still a bit high for some reason. I'll turn it off another day or so, see where it's at and when I turn it back on maybe I'll lower it. It's currently at 70%
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Has the pool service been there and maybe added some liquid chlorine?
 
Orion7319 said:
The T-940 is the extended life version of the T-15. It’s built a bit more robustly and so in theory you should get more life out of it. It’s rated to produce 725lbs of chlorine before it fails as opposed to 580lbs that the T-15 is rated to produce over it’s lifetime. The T-940 is supposed to only be sold to certified Hayward installers and so that’s the only way your supposed to be able to get one. I have one, it’s been fine for the past 3 years and hasn’t given me any issues. In pool math just use T-15 for all your calculations. The only time it’s really going to matter is when it eventually fails, and when that happens if you can’t find one, just look to replace it with a T-15.
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Thank you
Orion7319 said:
The T-940 is the extended life version of the T-15. It’s built a bit more robustly and so in theory you should get more life out of it. It’s rated to produce 725lbs of chlorine before it fails as opposed to 580lbs that the T-15 is rated to produce over it’s lifetime. The T-940 is supposed to only be sold to certified Hayward installers and so that’s the only way your supposed to be able to get one. I have one, it’s been fine for the past 3 years and hasn’t given me any issues. In pool math just use T-15 for all your calculations. The only time it’s really going to matter is when it eventually fails, and when that happens if you can’t find one, just look to replace it with a T-15.
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thank you for that information
 
mknauss said:
I would prefer that the FC be below 10 ppm to check the pH. You likely need to add acid, but the FC should drop that little bit if you turn off the SWCG for tomorrow.

Yes. The CYA should not drop unless you are getting rain overflow.
Just post what you get from the app to add and someone will check it.
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I retested the CYA just now and it was around 62-63
 
mknauss said:
Great. Round up to 70 ppm and follow the FC/CYA Levels
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Okay so just to be sure, the poolmath calculator says to add 12oz (we have dry) in order to bring that up to 70ppm….sound right? So I need to run the pump for 24hrs after doing that? It seems like I may have read that somewhere last week but can’t be certain on that.
 
lavndrocean said:
.sound right?
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No need. When you do CYA testing, it is best to fill the vial to each level, then check for the dot -- read this --
Once you have your solution ready, back to the sun, etc. Fill the vial to a line, say 80, lower the vial to your waist level and glance for the dot, you see it, add solution to the 70 line, glance, see it, repeat until you no longer see it with a glance. Then use the CYA value one step above the line you read. So if you stopped at 50, use 60 ppm CYA.

The vial is in logarithmic scale. So it is not viable to interpolate between the lines. Just use the whole numbers, such as 50, 40, 30, ....
 

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mknauss said:
No need. When you do CYA testing, it is best to fill the vial to each level, then check for the dot -- read this --
Once you have your solution ready, back to the sun, etc. Fill the vial to a line, say 80, lower the vial to your waist level and glance for the dot, you see it, add solution to the 70 line, glance, see it, repeat until you no longer see it with a glance. Then use the CYA value one step above the line you read. So if you stopped at 50, use 60 ppm CYA.

The vial is in logarithmic scale. So it is not viable to interpolate between the lines. Just use the whole numbers, such as 50, 40, 30, ....
Click to expand...
mknauss said:
No need. When you do CYA testing, it is best to fill the vial to each level, then check for the dot -- read this --
Once you have your solution ready, back to the sun, etc. Fill the vial to a line, say 80, lower the vial to your waist level and glance for the dot, you see it, add solution to the 70 line, glance, see it, repeat until you no longer see it with a glance. Then use the CYA value one step above the line you read. So if you stopped at 50, use 60 ppm CYA.

The vial is in logarithmic scale. So it is not viable to interpolate between the lines. Just use the whole numbers, such as 50, 40, 30, ....
Click to expand...
Oh, okay then, great!
 
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This thread has been great. I have just read the entire thread and you have fired the pool service and now have "fired" Leslies. If you have an hour or less a week, you can have your best pool, without those two, who you probably thought a couple weeks ago that that wasn't possible. Those two actually hindered your best pool. There has been no less than 6 people who have responded to your first post, who volunteer information and do not ask for anything in return($). With the money you save from firing the pool service and not going to Leslies for unneeded chemicals, maybe consider donating to TFP. It's easy and not nearly as expensive as what you were using in the past. Also, if you use Amazon, you could have Amazon donate a portion of your purchases there to TFP as well. It's called Amazon Smile, and you designate Trouble Free Pool as your charity. Also, I see you have been using Pool Math. Not sure if you bought the app or not, but you should consider linking your Pool Math tests to your TFP account so the experts can see what's going on with your water.

I am a new pool owner(2 years) and the amount of help I received during and after my build was invaluable. I still can't believe the great people at this forum, who come here every day to offer their knowledge for nothing in return but to help people have their best pool. I was swimming yesterday and am still marveling at how clear my water is. When people compliment my water, I tell them it was because I found this forum!
 
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SecoSteve said:
This thread has been great. I have just read the entire thread and you have fired the pool service and now have "fired" Leslies. If you have an hour or less a week, you can have your best pool, without those two, who you probably thought a couple weeks ago that that wasn't possible. Those two actually hindered your best pool. There has been no less than 6 people who have responded to your first post, who volunteer information and do not ask for anything in return($). With the money you save from firing the pool service and not going to Leslies for unneeded chemicals, maybe consider donating to TFP. It's easy and not nearly as expensive as what you were using in the past. Also, if you use Amazon, you could have Amazon donate a portion of your purchases there to TFP as well. It's called Amazon Smile, and you designate Trouble Free Pool as your charity. Also, I see you have been using Pool Math. Not sure if you bought the app or not, but you should consider linking your Pool Math tests to your TFP account so the experts can see what's going on with your water.

I am a new pool owner(2 years) and the amount of help I received during and after my build was invaluable. I still can't believe the great people at this forum, who come here every day to offer their knowledge for nothing in return but to help people have their best pool. I was swimming yesterday and am still marveling at how clear my water is. When people compliment my water, I tell them it was because I found this forum!
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Hi Seco- thank you for your input. I actually linked my Amazon account to TFP my first night (I had a charity I used for many years so I don't mind changing it up at all) and just purchased the app a bit ago. Everyone has been super and I wasn't expecting the speediness, let alone the real help. :) I'm very grateful.
 
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Hi. Im adding to this thread until I get everything situated for now. The SWCG didn’t run the 10th, 11th, 12th and is currently off to try and drop the FC a bit. Today I did the Comparator Block (picture is below), the FC and CC. It looks like the FC dropped from 11 to 3.5 in just those couple days, the CC is 0, the TA is 7.0 and CYA round up to 60.
Is that drop from 11 to 3.5 in three and half days? I guess I should’ve checked it yesterday.
 
Easily.
Add some liquid chlorine to get to your Target level and star using the SWCG to maintain.

Use the FAS-DPD test for measuring the FC.
 
mknauss said:
Easily.
Add some liquid chlorine to get to your Target level and star using the SWCG to maintain.

Use the FAS-DPD test for measuring the FC.
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Also- the salt is 3000 the swcg read 3500.

The FAS-DPD is the Chlorine Drop Test? The powder (R-0870) and R-0871 reagent and then the R-0003 right? That’s the one I did.
We have pinch a Penney and Leslie’s here. Does Walmart or Lowes sell that? Sorry- we’ve just never bought it before.
 

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