Polyquat filtering out??

[poolrx]

I was just reading WaterMom's sticky on winterizing AG pools. She mentioned that after she double-doses with polyquat 60, she runs the pump bypassing the filter and says that circulating with the filter will filter out the polyquat!? Is that accurate? Does that mean whenever you use algaecide in the summer with the filter running you're throwing away the polyquat so to speak?

Bring chlorine up to shock level based on cya levels and add a quart of poly 60 to return stream, should down filter after 5 minutes, put cover on and open pool to crystal clear water. So far so good for 3 years and going for 4