Do I need to SLAM

Envieddesigns

Well-known member
Apr 27, 2021
112
New Jersey
Pool Size
23000
Surface
Plaster
Chlorine
Liquid Chlorine
Would I need to do another SLAM being that 3 days ago my chlorine level went to zero. I did a motor replacement over the weekend and ran into other issues that left me without testing/ filtration for 2 days.

As of yesterday I was back up and running at 7pm. Water is nice and clear.
Tested levels yesterday were
FC 1.5
CC 0
CYA 60
Added 1 gal of liquid Chlorine per the app
Tested at 9pm
FC 10
CC 0.5

Tested 11pm
FC 8.5
CC 0

Tested Today 9am before work
FC 9
CC 0
Tested 530pm
FC 4.5
CC 0
Added Liq. Chl.
Todays we had no sun so assuming by that drop that I still need to kill off something? Originally I passed the SLAM overnight test on 3/23.
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
47,973
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
Water is crystal clear and you show a 0 FC drop in an OCLT (pump was run all night, correct,?). No reason to follow the SLAM Process if true.
 

Envieddesigns

Well-known member
Apr 27, 2021
112
New Jersey
Pool Size
23000
Surface
Plaster
Chlorine
Liquid Chlorine
Monitor. But sounds like things are in good shape.
So I tested twice last night before bed
My last reading I got an FC of 10
This morning FC of 10.5
Also we are currently having heavy rains since early this AM. I didn’t check my PH, is it safe to say that it’s not worth checking during a rain storm since it affects it?
 

Bperry

Gold Supporter
Aug 20, 2020
1,529
Knoxville, TN
Pool Size
27000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
CircuPool RJ-60
Your FC going up overnight indicates someone is adding chlorine to the pool or testing error (or not waiting long enough to test after adding chlorine)

You’ll need to figure out what’s going on to know how to correct.