Questions tagged [water]

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1answer
77 views

How is a mikve filled in for the first time?

I am wondering how one fills a mikve for the first time? Most of the works I consulted on the topic (e.g., the very good document here or Artscroll Mishna Mikvaos) mention "forty seah of rainwater ...
2
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2answers
584 views

May liquids other than water be used to kasher a material?

Hagalah is when water is boiled in a pot and a utensil is thrown in to kasher it. However, if a liquid other than water, say vinegar or oil, or a solution of water and another liquid is used. Can it ...
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1answer
38 views

Tevila :How to bring to mikva water urn [duplicate]

How do you tovel a shabbes coffee urn without damaging it
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14 views

Why doesn't the water from netilas yadayim immediately make your hands impure again? [duplicate]

I believe it's a mishna in Yadayim that says the first pour for netilas yadayim purifies the hand and the second pour purifies the water that's left on the hand. Hands are considered shniyim letumah ...
3
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1answer
90 views

Why can't you buy water for ma'aser sheni?

Ma'aser Sheni 1:5 says that water is an invalid option for buying with ma'aser sheni money. The reason, as Bartenura's commentary explains, is because ma'aser sheni money can only be used to buy ...
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53 views

Sukkot water libations - from the Torah, from Sinai, or from the Rabbis?

There's a disagreement recorded in the Mishna, Zevachim 13:6, regarding the Sukkot water libation. R' El'azar includes this ceremony in the list of Temple activities that are prohibited by the Torah ...
3
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1answer
59 views

Is it Bishul Akum if a gentile boils non potable water?

If a gentile boils non potable water (water that can't be consumed without being boiled), does such water have a status of Bishul Akum? Is water fit to be served by a King's table?
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18 views

Where was the well situated and how did it flow in the desert?

Many tried to picture the Israelite Camp in the wilderness, but none include the well. (c)Tent Camps Of The Twelve Tribes Of Israel Arranged by Jan Luyken And Willem Goeree by Jan Luyken Where was ...
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45 views

Does the Talmud discuss “Solomon's Pools”

I recall visiting Solomon's Pools, located a bit south of Bethlehem, years ago, before it became "Area A". Wikipedia says: The water system based on Solomon's Pools has provided water to ...
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64 views

Reverse Osmosis Water machine — possible kosher issues?

There’s a machine at a local store near me that has a reverse osmosis water machine. I don't think there is a hecsher on the machine, but it's just water. Is there any possible kosher issues with it, ...
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0answers
27 views

Paying damages for rerouting flood to neighbor's property

Are you obligated to pay for damage done to a neighbor's property if you redirect a river from flooding your property which then hits another house down the street. (i.e. You place sandbags in front ...
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2answers
148 views

bracha on unflavoured seltzer if one's not thirsty

It's well known that a bracha isn't made on plain, unflavoured water if one isn't [that] thirsty, the question is: what about plain seltzer (e.g. refreshe from Vons)? Is the addition of the bubbley ...
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1answer
114 views

Leaving drink out over night

For those who hold that leaving water out uncovered is an issue (Cf. The Gr"a), the same stringency applies to any water-based beverage - like tea, coffee, sugary drinks etc. However, the halacha ...
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2answers
88 views

Teshuva and spilling cold water on one's body

To repent can you pour cold water on yourself in the shower. With a pot or something while having teshuva in mind for the sin? Does it do anything? Like I’ve heard people do it before Yom Kippur. Can ...
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751 views

Tankless Water Heaters on Shabbos and Yom Tov

I have been trying to understand the issues with tankless water heaters on Shabbos and Yom Tov. (The simple description of how this works can be found here and here). I found this answer on Mi Yodeya ...
4
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1answer
70 views

Why does water purify?

The Torah states that immersion in a mikveh of water purifies a person from Tuma (spiritual impurity). Why does water do this? Is there some kind of spiritual powers imbued in water? Or is this just ...
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70 views

Water is Chesed

I read somewhere that "according to the kabala, water represents Chesed (kindness)". Any one know a source for this, and what that means in layman's terms?
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93 views

Drink fresh water after Shabbos coming from Miriam's well?

Taamei Haminhagim 423 explains the custom of women to draw water immediately when they hear “Borchu” after Shabbos. In short it says, In Agada it says that the Well of Miriam which is in the sea ...
2
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1answer
178 views

Water to prevent dehydration before kiddush on Shabbos morning?

The halocho is that after davenning on Shabbos morning, it is forbidden to drink water until one has made kiddush. See dinonline. Consider the following situation: one has davenned on a warm Shabbos ...
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2answers
353 views

Is hot water on an airplane kosher?

Why is it generally assumed that hot water on an airplane is kosher? Is the urn that warms up water on an airplane strictly for water use? Or do they alternate and it can be used sometimes for other ...
6
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1answer
154 views

Is the pipe which drains water out of the air-conditioner unit a Bossis L'davar Assur, because the water in it is Nolad B'shabbos?

Is the plastic pipe which drains the condensation water out of the air-conditioner unit a "Bossis L'davar Assur, because the water inside it is Nolad B'shabbos? If the whole pipe is either vertically ...
9
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3answers
3k views

Is it permitted to bring bottled water from an outside source into a kosher dining hall?

I was eating in the kosher dining hall (because it often has better food than the goy hall) and, after I finished drinking from the water bottle I had brought with me, a Jew walked up to me and told ...
2
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2answers
448 views

Salt Water With Karpas

Why do some specifically use saltwater at the seder for karpas? NOTE: Rav Shraga Simmons suggests the common answer that it resembles our tears in Egypt, but I haven't seen any commentators offer ...
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1answer
368 views

Does a refrigerator ice machine need to be cleaned for Pesach?

Many refrigerators have an outside ice / water dispenser. The fridge makes ice "cones" which go into a reserved plastic ice bucket that is attached to the inside of the fridge door. Ice can be ...
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2answers
105 views

What is the status of water used for Kashering?

If one kashers a pot by boiling water in it (and throwing rocks in so it overflows) or kashers silverware IN a pot, what is the status of the water afterwards? [I see that water can acquire some ...
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1answer
135 views

Is it dangerous to drink water on Tuesday and Friday nights?

The Gemara in Pesachim 112a says A person should not drink water on Tuesday nights or [...] Friday nights. And if he drinks water, his blood is upon his own head, due to the danger. What is this ...
6
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2answers
128 views

B'nai Yisra'el complaining about water and food - sometimes punished, sometimes not

There were numerous times that B'nai Yisra'el complained to Moshe (and, sometimes, Aharon) about the lack of food or water in the desert. But, it seems that sometimes G-d punishes them and sometimes ...
5
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1answer
612 views

Blessing over a wine-water mix

Someone I know likes to mix (commercial) grape juice or wine with water or seltzer and drink the result. Of course, the first of those two ingredients normally requires "hagafen" and "al hagefen", ...
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1answer
572 views

Using hot water on shabbos

Is there any heter to use hot water on shabbos - for say washing dishes, or for bathing children (not addressing issues of drying hair etc)? Does leaving a faucet of hot water running before shabbos ...
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0answers
67 views

How could the angel of the sea disobey?

The Midrash in Bamidbar Rabbah 18:22 expounds Iyov 26:12 that when HaShem created the world, he told Rahav, the angel in charge of the ocean, to "open his mouth and swallow all the waters of Creation" ...
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3answers
113 views

Mayim acharonim minimum

Do the little mayim acharonim cups which barely sprinkle enough water for three people have any source in halacha, other than what the Mishnah Berurah (181:10) is upset about? Although using the ...
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0answers
91 views

How much snow for tevilah?

In respect to tovelling dishes in the snow, this discussion concludes that who knows what the Shulchan Aruch holds, but the Rema allows such a practice in times of need. But just how much snow? After ...
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0answers
39 views

R' Yehoshua and the Athenian Elders: Endless pouring

This is part of a series of questions on the Gemara in Bechoros 8b-9a. Below is a summary of the relevant parts of the Gemara. After being challenged by Caesar, R' Yehoshua went to Athens to defeat ...
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1answer
96 views

May one soak bulgur wheat on Shabbat?

One method to make tabouleh, is to soak bulgur wheat in water. The method is to pur an amount of bulgur into a bowl, cover it with water and have it soak in the fridge for about 30 mins. until the ...
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1answer
63 views

Moshe doubts G-d in Numbers 20:8

In Numbers 20:8 G-d commands Moshe to speak to the inanimate rock for water. Was this really a reasonable command for G-d to make? Even Moshe seems to have thought this was an impossible ...
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2answers
117 views

What were Moshe and Aharon supposed to say to the rock?

B'midbar 20:8 shows that G-d instructs Moshe and Aharon to speak to the rock, and it will bring forth water. Usually, when G-d instructs Moshe to speak to B'nai Yisra'el he indicates what Moshe ...
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1answer
85 views

Must ice cubes be designated meat or dairy and separated?

If I have a freezer each for meat and for dairy, can the ice from automatic ice cube maker in my meat freezer be used to cool dairy drinks?
4
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1answer
98 views

Can hot tap water touching rainwater frozen by winter create a valid mikveh?

I'm considering building an outside mikveh, with the freshwater section above the rainwater section (with two holes between them, classical "bor al gabai bor" halachic design) but there is no ...
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2answers
328 views

Why does fruit juice, when mixed with flour, not count as chametz, since it contains water?

How can mixing flour with fruit juice be permitted on Passover, since all fruit juice, even pure juice directly squeezed from fruit always contains water?. Water, H2O, is simply a chemical component ...
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101 views

Maharil and Terumat haDeshen: Mayim Shelanu

Inspired by this question. I have heard a machloket in the names of the Maharil and the Terumat haDeshen about the source for mayim shelanu. While the details were given, the sources were not. The ...
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617 views

Mayim shelanu history?

The water used to bake Matzah must be mayim shelanu—water that had been drawn in the evening and left to cool overnight. What is the halachic background for this requirement?
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1answer
2k views

Why would spring water or mineral water need a kosher certification?

Nearly every popular U.S. brand of spring or mineral water that I've seen has a kosher certification symbol on the bottle. Amonng them are Perrier and Saratoga (mineral / sparkling) and Poland Spring ...
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1answer
98 views

Hydroponics – Allowed on Seventh Year?

Would hydroponics be allowed in Israel on the seventh year, when there are additional restrictions on farming the land?
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1answer
186 views

Can an igloo be a valid succah?

Follow up to this answer. The end of item 1 encouraged me to ask a question regarding using ice as the succah walls. Assume that scrub brush is used as schach. Some additional parameters regarding ...
3
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1answer
143 views

Can flowing water be used as walls for a sukkah?

Is it permissible to make a sukkah with walls made of flowing water (assuming that schach can be suspended over these 'walls')? Furthermore, would the water need to be 'continuous' or 'wall-like' (...
4
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2answers
516 views

For puposes of Tashlich, what is considered a “body of water”?

On the 1st day of Rosh Hashanna (if not Shabbat), customarily people go to a body of water for Tashlich. Does the water have to be there currently and must be a "natural" body of water? If so, what's ...
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88 views

Will accidentally wetting a page of an English Tanakh rend it non kosher?

If someone accidentally dropped a drop of water on a page of Tanakh will reading it, and the Tanakh is in English and the drop of water didn't fall on any name of HaShem. Will that make it non kosher ?...
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1answer
172 views

Water Fasts and Halacha

Some spiritual disciplines have a concept of a "water fast" (see https://en.wikipedia.org/wiki/Water_fasting), during which one consumes only water, tea w/o sugar, etc. Clearly, consuming even water ...
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1answer
74 views

Why does the Chumash have to explain what “thirst” means?

In Parshat Eikev, Moshe recounts all the challenges of the time in the desert. In Devarim 8:15 we read, 15.Who led you through that great and awesome desert, [in which were] snakes, vipers and ...
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2answers
753 views

Is a dud shemesh allowed to be used on Shabbat?

Can a solar-powered water heater (a dud shemesh [דוד שמש] in Hebrew) be used on Shabbat? These are quite common in Israel as a way of heating water without electricity on a sunny day. Essentially, ...