Better posture to drink water

Right.....**

And what about sitting and drinking the esophagus than also remains same and can be hit hard I don't think that there is any change in motion of water when we sit and drink

Dear, with all due respect and without bias to any religion:
Sphincters are circular muscles at certain passages, and yes they open and close to allow fluids in and out. There are over 50 Sphincters in the human body.However Sphincter does not have any filter action.

All that water can contain while you drink it is dissolved salts. Anything else which is solid is digested in the normal way. Water mixed with all the post-digested material(waste that will form feces) is passed to the colon(the last part of your intestine), where it gets absorbed into blood. - This is why doctors ask you to drink enough water to avoid constipation.

It is good to note that water is absorbed from the waste material by osmosis. Water absorption at the colon typically proceeds against a transmucosal osmotic pressure gradient. The standing gradient osmosis is the reabsorption of water against the osmotic gradient in the intestines. This hypertonic fluid creates an osmotic pressure that drives water into the lateral intercellular spaces by osmosis via tight junctions and adjacent cells, which then in turn moves across the basement membrane and into the capillaries. So absorbed/re-absorbed water goes to the blood. Which is later carried through the renal arteries to the Kidneys.

The Kidneys are indeed filters. They filter the blood to remove impurities including Urea and uric acid. Vital nutrients like amino acids and glucose are also re-absorbed. Kidney also produces Urine which is channeled to the Urinary bladder via Ureters. Urine is a super saturated liquid, i.e. it contains a high density of dissolved salts and other wastes. Hence, In case the water you drink has a lot of dissolved salts, the saturation in your urine will increase.

Please note that until the kidneys, standing or sitting to drink water does not make any obvious difference.

From studies, it is clear that from the time of drinking water, it starts showing up in the bloodstream in around 5 minutes (See more at: http://www.jci.org/articles/view/102366/scanned-page/1296)

To talk about precipitation in Ureters :
The urinary tract acts as a temporary storage for urine, before it is excreted through urination. Sometimes solutes occur in amounts too high to stay dissolved in urine and hence start precipitating and aggregate to form stones. There are many reasons why this could happen, including certain medical conditions. You can read more on this here : http://www.auanet.org/education/kidney-stones.cfm

Another possible explanation could be that if we have 2-3 glasses of water it could be heavy on your stomach and if you are sitting, it would be more comfortable - like having a meal while being seated.

I hope this was written without prejudice to anyone or bias to any religion.
Par scientific evidences, now it is up to your conscience to judge and believe.

Thank you for your time.

i think medically it's wrong

water goes to one kidney, if u stand and drink...... it's really funny, i dont think it's true

Drinking water while sitting is the way Islam taught us , YES and its now proven to be a healthy medical too, this is what I heard from many doctors.( drinking water while standing will allow the stomach to expand and would cause ulcer . you need to sit and drink room temperature and drink it in to small stages .