If your pipe wrench slips on a pipe or yoke, it's not set right. The "wedge" aspect must be set correctly, then it can't slip. Many have had good luck using Monkey's on yokes. True enough, using the right tool is best. The plumbers on here will leak all over this.
Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn |