Tzedokoh collection during davening

Does the gabbai or child bring the pushkeh around to collect tzedokoh during Chazoras HaShatz only on Monday and Thursday mornings, or every weekday?

Rallis

Michael wrote: Minhag Frankfurt is to collect Tzedoko every day when the Chazan says "Refo'einu", as seen in Divrei Kehillos page 86.

In KAJ the Pushka sits at the entrance to the shul and people are supposed to give tzedaka when entering or exiting. No collection is made in middle of davening. My Opa zt"l said that such was also the custom in Berlin and that the custom of collecting during davening is a very disturbing custom as it distracts the tzibbur from Chazaras HaShatz, Kaddish, Aleinu, etc. For this reason, he basically ignored the collectors during davening and I do likewise.

MPerlman