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14
votes
1answer
223 views

Rainbow in water spray

You can often see a rainbow in a spray of water such as from sprinkler irrigation. Is the brocha for a rainbow applicable in that case? Also, does a rainbow that comes from a prism get a brocha too?
6
votes
1answer
65 views

Water from hydroelectric plant for netilat yadayim?

The Shulchan Aruch OC 160:2 rules that water with which one has done "melachah," is disqualified from netilat yadayim. Does this include water which has flowed downstream from a hydroelectric plant?
5
votes
1answer
133 views

Is runoff water from a drinking fountain a problem of Bal Tashhith?

There are so many potential questions raised with respect to runoff water, so I'll just stick with one: When I was a kid I was taught to let the water of a drinking fountain run for 10 seconds before ...
3
votes
1answer
66 views

Why is moisture a chatzizah for netilas yadayim?

Why is moisture a chatzizah for netilas yadayim? I guess you can say that the hands must be completely clean, but then why don't you have to wipe your hands in middle? For example, one who washes his ...
10
votes
2answers
628 views

Why is it ok to use tap water/toilets on Shabbos? Considering the source of the water pressure

Why is it ok to use tap water/toilets on Shabbos? Considering the source of the water pressure. The water pressure that enables the water to flow out of the tap has to come from somewhere. It is ...
8
votes
3answers
917 views

How do I avoid thirst when fasting?

I started fasting on Yom Kippur as an adult, about 10 years ago. A couple times I had to drink a glass of water either after Kol Nidre or before Shacharit, because I felt completely dehydrated (I did ...
9
votes
1answer
281 views

Does Drinking Seltzer == Drinking Water?

Inspired by this revision of this answer: There are various minhag implications with regards to drinking water. Seltzer is essentially carbonated water. So how do those minhagim apply to seltzer? ...
11
votes
2answers
598 views

Taking a Shower after the Mikvah

Is there any problem with taking a shower after dipping in the Mikvah? I once heard there was.
7
votes
2answers
279 views

Drinking Water During “Shalosh Seudos”

Someone told me that one is not allowed to drink plain water during the third meal of Shabbos (Seudah Shelishit). (or at least that there is a minhag not to). Is this true? And if so, what is the ...
16
votes
2answers
162 views

Hagalah in Denver?

In high-altitude cities, water boils at a lower temperature than the standard 212 degrees Farenheit. For example, in Denver the boiling point is about 203 degrees. Can one kasher utensils with hagalah ...
7
votes
4answers
537 views

tap water on Pesach

The New Croton Reservoir supplies much of New York City's tap water, and people are allowed to — and do — go out on boats and fish. I'd venture a guess that almost every Saturday and Sunday, a piece ...
4
votes
2answers
1k views

Where can I find the current water level of the Kineret to see the effect of mentioning Morid Hageshem?

Throughout the winter we pray Mashiv HaRuach UMorid HaGeshem. My understanding is that it is said for Eretz Yisroel dwellers (unlike V'sain Tal Umatar LBracha which is said for your locale). As we ...
4
votes
2answers
134 views

Did the Jews in Egypt gain monetary benefit from the miracle of the first plague?

There is a well known Medrash Rabbah that the Jews during the Plague of Blood sold water to the Egyptians for exorbitant amounts of money. The question is how was this allowed as we have a rule that ...
3
votes
1answer
227 views

refilling a percolator on Yom Tov

Are you allowed to refill a percolator or hot water urn on Yom Tov?
2
votes
2answers
166 views

Yarden's River Name

Why is it called ירדן?
4
votes
3answers
131 views

Hitting of the rock (Chukas): why twice?

Why did Moshe hit the rock twice rather than once in Bamidbar 20:11?
11
votes
3answers
267 views

Dew distinct from water among the shiva mashkim

The seven mashkim are blood, water, milk, honey, wine, oil, and dew. What is the difference between water and dew? Isn't dew a type of water?