I don’t think anyone here recommended that particular clarifier.
I would not add anymore.
You will likely now really need to deep clean your sand- which you should have maybe just done instead anyway especially if you haven’t done so in some time (year or so) and are concerned you have a filtering problem.
Clarifiers are like glue. Not something you want in your filter media.
This post will walk you through the anatomy of a sand filter, and then provide a video at the end for how to deep clean your sand filter. The filter used in the photos and videos is a Hayward S180T top mount sand filter. The images are of a similar filter. Obviously not all filters are...
www.troublefreepool.com
After which you can try the de - it must be replenished with each backwash
A clean pool filter will increase the efficiency of your pool! ... your filter are to backwash it, clean the manifolds and grids, and add new DE.
www.google.com
Aside from that - doing all the things is the answer & having patience as sand filters take the longest to clear.
For a successful SLAM Process
you need to continue to MAINTAIN Slam level fc for your cya as often as possible (multiple times per day is best) until you meet ALL 3 end of slam criteria-
You are done when:
CC is 0.5 or lower;
You pass an Overnight Chlorine Loss Test
AND
the water is clear.
(Crystal Clear w/no algae dead or alive)
*Check & scrub every nook & cranny where algae may hide (light niches, steps, drain covers, ladder handrails, skimmer throats/weirs, abandoned lines, autofill, overflow drains, etc.)
*If water can go there, algae can thrive there.
*Run slam level water through all water features & lines for at least a couple hours a day during the
SLAM Process.
*Brush & or vac daily (this breaks up biofilms that algae uses to protect itself from chlorine)
*Backwash/clean filter when pressure rises 25%over clean pressure.
What is your cya & fc level?