RE: KCl in PD fluids

Hi All,
We have been supplying KCl 20 mEq and 40 mEq in 100 ml Sterile Water pre-made minibags for use in PD unit. The RN's were drawing out whatever volume they needed to obtain desired amount of K and then adding this to PD bags. We have been asked by the PD unit for alternatives and to find out what other centres are doing. Are many of you manufacturing the peritoneal bags with K added?
Thanks for your help!
Anna