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127 bytes added ,  04:10, 3 March 2020
# One may not use a wet brush to scrub if the brush's fibers are soft and dense. However, if the fibers are stiff, sparse, and made out of synthetic material one may use that brush for scrubbing. Similarly, a plastic mesh or wire mesh may be used for scrubbing only if the fibers are thin and the netting is widely spaced. However, one may not use a mesh if the fibers are closely packed; for example, one may not use a steel wool pad. To determine whether the fibers are considered dense or sparse one should conduct the following test before [[Shabbat]]: Immerse it in water and upon removing it if the water drains out immediately the fibers are considered widely spaced, however, if water stays absorbed it is considered densely spaced.<ref>39 Melachos (vol 2, pg 349-50) </ref>
# A wet sponge is [[Muktzeh]] Machmat Issur and may only be moved if the space it is occupying is needed. When moving a wet sponge one should do so gently so as not to squeeze out any liquid. However, a dry sponge or a wet sponge which has a handle or vinyl backing aren't [[muktzeh]] and may be moved for any necessary purpose. <ref>39 Melachos (vol 2, pg 354) </ref>
==Squeezing water from hairWater Out of One's Hair==
# It is forbidden to squeeze water out of one's hair on [[Shabbat]].<ref>Mishna Brurah 326:25. See Yabia Omer 4:30:19 who proves that the Rashba and other rishonim hold that there's no rabbinic prohibition to squeeze hair. However, he does not conclude in accordance with those rishonim; instead he follows the Rambam and Shulchan Aruch that it is rabbinically forbidden.</ref> Similarly, one shouldn't shampoo one's hair on [[shabbat]].<ref>39 Melachos (vol 2, pg 371)</ref>
# One may wet one's hair if one does not squeeze it out. <ref>39 Melachos (vol 2, pg 371)</ref>
# One should not shake one's head vigorously in order to remove the absorbed water. <ref>39 Melachos (vol 2, pg 372)</ref>
# One may not dry one's hair with a towel by pressing the towel to the wet hair. Instead one should touch the towel lightly to the hair.<ref>Ben Ish Chai (Pekudei II n. 8) writes that one could pat dry the hair with a towel but not press. This is also the conclusion of [https://www.yeshiva.org.il/ask/91086]. See Piskei Teshuvot 326:12 with all the opinions. Mishna Brurah (Biur Halacha 326:8) who emphasizes that when going to the mikveh one should be careful not to violate sechita implies the same.</ref>
# One may tightly wrap a towel on one's hair to absorb the liquid because the liquid is absorbed immediately and becomes useless.<ref>39 Melachos (vol 2, pg 371)</ref>
# Some permit drying one's beard on Shabbat.<ref>Igrot Moshe 1:133</ref>
==Cleaning a counter or table==

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