To mustard slam or not

Oct 17, 2018
2
VA
I haven’t yet made a signature but our pool basics:

27000 gal vinyl
3/4 HP Hayward Pump
Sand Filter
Hayward Aquarite SWG with T-15 cell

We use a solid safety cover and opened to a relatively clean pool. Vacuumed 48 hours after initial opening to clear debris. Noticed a lovely chlorine odor when I put the hose in followed by a few yellow patches that poofed in the sunny shallow end dead zones. Began SLAM process with following chemistry based on my test kit;

PH 7.2
TA 60
CYA 50
CH 200
Salt 2700 (SWG currently off)

On night 4 passed OCLT with FC 22 and CC 0 (that gallon from HD seemed a little stronger). Pool has always been crystal clear. Ladder is out and has been scrubbed with bleach for install. Only thing in pool is an inflatable shark because #ducks (he seems to work well).

The question is to mustard SLAM or not. The original spots were about 2-3 areas the size of pennies. Dark yellow to brown. Never had cloudy water.
 
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