For that just boil few tea leaves in water. Make a concentrated liquid..add sugar to taste....strain it and in a glass fill 1/3 glass with this liquor, add lemon juice..add water and <u>mix</u> and have..

Yes that very good..as everyone has suggested chaas.. lemonade are good options..you can also make ice tea with not so cold water and have..it quenches thirst for a long time..

Is drinking water from water stored overnight in copper bottle okay?

Tender coconut water and chhas are the most tasty options. U can keep reminder too just as suggested by <font color ="#3b5998"><b> @616dae5bb34e550013ec4cc3 </b></font> . U can keep 4 one liter bottles filled in front of u. And keep drinking the whole day.

Dear u can consume other fluids like nimbu pani,soups(homemade), fruit juices (freshly made not canned) chaas this should also help u serve the purpose. But best is water what I do is as I'm working in office due to work I tend to forget to drink water so kept an alarm at ever 1/2 which reminds me to <u>drink</u>