A knot and a bow on top of it is permitted, however, a double knot is אסור. ראה אדה"ז סימן שיז סעיף ב. #3941
A knot and a bow on top of it is permitted, however, a double knot is אסור. ראה אדה"ז סימן שיז סעיף ב. #3941
Leave it. The Tzitzis may be worn as is. Do not redo it even lightly. See Halacha2go.com #8: Can I check my Tzitzis on Shabbos? Sources: אסור…
