Added Chlorine Shock and Muriatic acid to Cloudy Pool, FC still 0.6

giant_donut

Well-known member
Mar 16, 2021
51
Austin, TX
Pool Size
20000
Surface
Plaster
Chlorine
Salt Water Generator
Another round of updates:

At 7:45pm (yesterday) I tested the water:
FC = 23ppm
CC = 0.5ppm

In order to maintain 24ppm for SLAM, PoolMath says to add 38 oz of LC (10%) which I did.

At 11:10pm (yesterday) I tested the water again:
FC = 21.5ppm
CC = 0.5ppm

In order to maintain 24ppm for SLAM, PoolMath says to add 96 oz of LC (10%) which I did.

Today morning at 8:10am I tested the water:
FC = 27.5ppm
CC = 0-0.5ppm

Question: Does it matter if the FC went up by that much? CYA at the beginning of SLAM was 60. I'll test the water again in 3 hours and see what the levels of FC are but should I add more LC (10%) if it dips below 24ppm? I don't expect the FC to drop by 3ppm in 3 hours but maybe with more sunlight it will.
 

Newdude

Gold Supporter
TFP Guide
Jun 16, 2019
6,959
NY
Maintain SLAM levels. (Hence the ‘M’). :)
anytime the FC dips below the target you will lose some algae killing strength. Overshooting the target slightly decreases the optimal chlorine efficiency VS cost. So you lost some product that you didn’t need to add, but what you added will still do its thing. If the worst that happens today was you wasted $3 in bleach, it was a good day.
 

giant_donut

Well-known member
Mar 16, 2021
51
Austin, TX
Pool Size
20000
Surface
Plaster
Chlorine
Salt Water Generator
Great, thanks! Not worried about cost at this point since I'll be firing the pool service folks which will save me greatly in the future! I'll continue to maintain the SLAM levels. It's me against the Algae and I want to win!
 

Casey

TFP Expert
LifeTime Supporter
Apr 16, 2007
11,922
SW PA
Pool Size
17000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Jandy Aquapure 1400
When you fire the pool guy, just know that the pool is going to need to be fed daily once your SLAM is complete. Consider it like a new puppy. :mrgreen:
 

giant_donut

Well-known member
Mar 16, 2021
51
Austin, TX
Pool Size
20000
Surface
Plaster
Chlorine
Salt Water Generator
Yeah should be fun (I hope)! Bought 12 gallons of LC (10%) and bought more Taylor R-0871 Fas-Dpd Titrating agent to continue testing for FC. Already used a lot of it while testing during the SLAM.
 

Casey

TFP Expert
LifeTime Supporter
Apr 16, 2007
11,922
SW PA
Pool Size
17000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Jandy Aquapure 1400
Yeah should be fun (I hope)! Bought 12 gallons of LC (10%) and bought more Taylor R-0871 Fas-Dpd Titrating agent to continue testing for FC. Already used a lot of it while testing during the SLAM.
You'll go through chlorine when performing a SLAM. If you stay on top of daily testing and feeding your pool then you'll never truly have to SLAM again. Just dont get lazy and/or buy a SWG.
 

wireform

Silver Supporter
In The Industry
Aug 15, 2017
2,115
Spring Valley, NY
You see you're finally realizing that the once a week pool guy thing can't work as seeing this process first hand. Now that you know that LC is an every day thing it makes more sense to move onto SWCG because the pool needs it every day. It boils down to do want to be at the chlorine thing or let it be with SWCG all dialed in. I'll tell you that when you finally go with salt there be no looking back.
 

giant_donut

Well-known member
Mar 16, 2021
51
Austin, TX
Pool Size
20000
Surface
Plaster
Chlorine
Salt Water Generator
I'll see if we can get the SWCG replaced. Just put in a service order for the home warranty to come take a look at it.

I’m attaching the current pool picture. It’s clearing up nicely and still continuing to maintain SLAM procedures.

F1BF1227-6706-4A1A-A8A4-AA9893502D2A.jpeg5E2061DF-B356-49F7-AF32-C61AF7993CC7.jpeg
 

Casey

TFP Expert
LifeTime Supporter
Apr 16, 2007
11,922
SW PA
Pool Size
17000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Jandy Aquapure 1400
That's a nice looking pool!
 

Enjoying this content?

Support TFP with a donation.

Give Support

giant_donut

Well-known member
Mar 16, 2021
51
Austin, TX
Pool Size
20000
Surface
Plaster
Chlorine
Salt Water Generator
I just fired the pool servicing company. At this point I’m all in. I told them that I had to SLAM the pool and get the FC up to 24ppm using almost 6 gallons of LC. He said that was probably an overkill if the pool wasn’t looking green and 2 gallons would have taken care of it. I wasn’t at the point that I wanted to argue so we left it at that. I trust TFP and I know where to turn to for pool related questions.
 

wireform

Silver Supporter
In The Industry
Aug 15, 2017
2,115
Spring Valley, NY
I just fired the pool servicing company. At this point I’m all in. I told them that I had to SLAM the pool and get the FC up to 24ppm using almost 6 gallons of LC. He said that was probably an overkill if the pool wasn’t looking green and 2 gallons would have taken care of it. I wasn’t at the point that I wanted to argue so we left it at that. I trust TFP and I know where to turn to for pool related questions.
Goes to show you how much they understand, nuff said. good luck
 

DanF

Silver Supporter
Mar 17, 2019
354
Chandler, AZ
Good move, and congrats! Now buy you and your wife a nice bottle of wine with the savings :cool:.

Want to point out that you did two other smart things while SLAMing: removing the floater (your CYA is not bad but shouldn't go any higher. You'll find that it will drift down slowly one the summer scorch begins), and removing leaves and debris. These are organic material that will consume chlorine. I try and get em outta my pool as soon as possible, and may be accused of mild OCD!

If you decide to continue with LC instead of an SWG, just ensure that your chlorine is inside during the summer. The TX heat will degrade it pretty quickly. I keep mine in my laundry room.
 

giant_donut

Well-known member
Mar 16, 2021
51
Austin, TX
Pool Size
20000
Surface
Plaster
Chlorine
Salt Water Generator
Failed OCLT

Last night tested at 8:15pm
FC 25ppm
CC 0.5ppm

Didn’t add LC as it was maintained at/above 24ppm

This morning tested at 6:30am
FC 22ppm
CC 0.5ppm

Will continue to SLAM. I think there is debris/dirt/dead algae at the bottom of the pool which I’ll manually vacuum since my Polaris 3900 isn’t getting it.
 
  • Like
Reactions: Newdude

wireform

Silver Supporter
In The Industry
Aug 15, 2017
2,115
Spring Valley, NY
Keep at it. I'd recommend to break open your filter and clean it even with just plain old garden hose water. Not necessarily are any chems needed now for the cleaning. Afterwards the slam will run to the finish line real fast.
 

DanF

Silver Supporter
Mar 17, 2019
354
Chandler, AZ
...which I’ll manually vacuum since my Polaris 3900 isn’t getting it.
One way to spend your pool service savings is on a robot. Bought mine a year ago based on recommendations here and never looked back.

 
  • Like
Reactions: geh

magiteck

Gold Supporter
May 20, 2020
421
Neenah, Wisconsin
Pool Size
13600
Surface
Vinyl
Chlorine
Liquid Chlorine
Failed OCLT

Last night tested at 8:15pm
FC 25ppm
CC 0.5ppm

Didn’t add LC as it was maintained at/above 24ppm

This morning tested at 6:30am
FC 22ppm
CC 0.5ppm

Will continue to SLAM. I think there is debris/dirt/dead algae at the bottom of the pool which I’ll manually vacuum since my Polaris 3900 isn’t getting it.
I just looked at your pictures above again and it looks like there's some green stuck in/around your floor drain? That could be a culprit, so try and get that out of there for sure.
 

giant_donut

Well-known member
Mar 16, 2021
51
Austin, TX
Pool Size
20000
Surface
Plaster
Chlorine
Salt Water Generator
This is going to sound dumb but I ran out of the R-0871 Fas-Dpd Titrating reagent due to multiple testings (48 drops = 24 ppm, multiple tests a day). I only had the .75oz bottle :( I went to Leslie's and they didn't have that in stock.

Edit: Nevermind, Leslie's up north of me had it. Heading over!
 
Last edited:

Enjoying this content?

Support TFP with a donation.

Give Support