My results with new TF-100

[Jdaher]

My new TF-100 got here today!

FC	5.5
CC	1.5
PH	7.4
CH	250
TA	135
CYA	25

CYA level was directly between 20 and 30, so I assumed CYA of 25.

Starting SLAM. Pool math said shock level is 10, so I added 28 oz of cal-hypo 65% to bring the FC level to 10. Waited about 30 mins while scrubbing walls then checked FC & CC again.

FC	13.5
CC	1.5

Here are pictures from today:

 

[Richard320]

How exciting! The Junior Scientist Playset is here!

You are aware that Cal-hypo is going to raise your CH level as it raises the FC level, right? The FC will disappear, but the CH won't. If it's leftovers you're using up, fine. Otherwise, buy liquid shock or plain bleach in the future. Also note that Cal-hypo can cause cloudiness for a day or two after it's been added. It also can react unpleasantly with certain algaecides, if the pool store suckered you into buying any in the past.

 

[Jdaher]

After the 50lb bucket is used up, we will switch to liquid chlorine. We still have about 15 lbs of trichlor that we were afraid to use because the pool store keep telling us our CYA was 100. We were pool stored into buying copper algaecide. We added about 20 ounces of it a little over a week ago. What kind of unpleasant reactions?

 

[Richard320]

After the 50lb bucket is used up, we will switch to liquid chlorine. We still have about 15 lbs of trichlor that we were afraid to use because the pool store keep telling us our CYA was 100. We were pool stored into buying copper algaecide. We added about 20 ounces of it a little over a week ago. What kind of unpleasant reactions?

In an extreme case...http://www.troublefreepool.com/threads/74854-How-do-I-fix-this-Foam-Ice-Bergs-plus-Green

 

[jblizzle]

Don't keep using a product that is going to take your CH out of range. Once it gets too high, you will have to drain and replace water.
Clearly you CYA is not too high, so you could use some of the Trichlor (if you understand all the effects), although I would wait until after you finish the SLAM process using liquid chlorine.

 

[Jdaher]

Here is what the pool looked like two weeks ago:


1 week ago:

 

[Jdaher]

3pm
Fc-11.5
Cc-1.5

Brushed and Vacuumed pool

5:30pm
Fc-10
Cc -1

 

[jblizzle]

Test again in an hour or so as you FC will have dropped below SLAM level and you will need to raise it back up. At least the CC appears to be dropping

 

[Jdaher]

Added 32 oz of cal hypo 65% at 6:30pm to bring fc level to about 15 according to pool math.

Tested 7:30 pm

FC - 20
CC - 2

Why did FC go up so much? Should CC go up at any point during this?

 

[Richard320]

Added 32 oz of cal hypo 65% at 6:30pm to bring fc level to about 15 according to pool math.

Tested 7:30 pm

FC - 20
CC - 2

Why did FC go up so much? Should CC go up at any point during this?

It probably didn't mix well. If you hit the pool with the brush and get some cross-currents going, it will mix better.

CC will be all over the place during the SLAM. At some point it will go down and stay down. You only need to worry about it after the water is clear. If the water is clear and the CC is less than .5, then you set the alarm extra early and do the overnight test. Until then, don't worry if CC bounces around.

 

[Jdaher]

6:45am
FC 14
CC 1.5

 

[JVTrain]

6 FC loss overnight isn't too bad for what stage you're at with the SLAM. Keep at it! And keep posting pictures when you can.

 

[Jdaher]

6 FC loss overnight isn't too bad for what stage you're at with the SLAM. Keep at it! And keep posting pictures when you can.

It probably wasn't mixed up all the way like Richard said so it was probably even less fc loss overnight.

Today around 11:


About to go test

 

[Jdaher]

12pm

FC 11
CC 0.5

Added 12 ounces cal hypo 65% to bring level to 13 in case of sun loss during the day.

 

[jblizzle]

You did note the statement earlier that the cal-hypo might be contributing to your cloudiness ... right?

 

[Jdaher]

You did note the statement earlier that the cal-hypo might be contributing to your cloudiness ... right?

Yes, when we run out of the cal hypo, we will switch to liquid chlorine. Will adding DE to my sand filter like in the how to section help with the cloudiness?


Sent from my iPad using Tapatalk

 

[Jdaher]

8:30pm

FC 14.5
CC 1.5

I also added DE to the sand filter. Only took 1 cup to raise pressure by 1 psi. Followed directions posted on here.

 

[Jdaher]

5:30 am

FC 13
CC 1.5

Filter pressure rose from 16 psi to 20psi after adding the de (9 hours)

Added 20 ounces of cal hypo 65% to bring fc to 16-17. Should be sunny today. I figure a 30-40% loss should keep me close to or above 10 fc.

 

[Jdaher]

3:30pm
FC 12.5
CC 1.5

Added 22 ounces of calhypo65 to bring FC to 16 and scrubbed everything.

 

[Jdaher]

7pm

FC 17.5
CC 1.5