Choosing polyquat on closing... Or not?
And if so, how to close with polyquat AND shock level FC for those of us with solid covers and freezing winters. Especially for with those of us with borates >50. Any new thoughts?
And if so, how to close with polyquat AND shock level FC for those of us with solid covers and freezing winters. Especially for with those of us with borates >50. Any new thoughts?