Q. Is it permitted to use the water in a swimming pool when collected in a cup or similar to wash hands for eating bread?
A. Horav Shlomo Miller’s Shlit’a opinion is that it should not be used as it may be considered water that has been already used for work or another purpose and is therefore disqualified. (Shulchan Aruch O.H. 160: 2).
Rabbi A. Bartfeld as revised by Horav Shlomo Miller, Horav Dovid Pam, Horav Aharon Miller and Horav Chanoch Ehrentreu and Horav Kalman Ochs Shlit’a