Q. Often when the weather permits during these covid days, I daven shacharis by myself on the porch as I find it inspiring to see the trees and listen to the birds. When the wind blows, as it often does, I find it necessary to keep the taalis on my shoulders, to secure it by tying the two front corners together in a single loose knot. Is that permitted?
A. Horav Shlomo Miller's Shlita opinion is that it is permitted since it is only a single knot (not a kesher shel kayomo) and it is also loose. Besides the tzitztis are kept untied, free and separated.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller Shlit'a