Acid rain is caused when the oxides of nitrogen and sulphur are precipitated from the rain water. These oxides are present in the upper atmosphere and when rain falls these oxides get dissolved in rain water and forms nitric acid and sulphuric acid thus makes it acidic. this type of rain is called acid rain.

How acidic is Coke? Its pH is reported to be 2.6 to 2.7, mainly due to H3PO4, phosphoric acid. As a fizzy drink, it contains plenty of dissolved carbon dioxide, but this makes very little contribution to the acidity.

“Clean” or unpolluted rain has an acidic pH, but usually no lower than 5.7, because carbon dioxide and water in the air react together to form carbonic acid, a weak acid according to the following reaction: H2O (l) + CO2 (g) ⇌ H2CO3 (aq)

There are four broad categories of disinfection methods: heat, filtration, irradiation, and chemical methods.

1. Boiling water is an excellent method, but obviously, it only helps if you have a heat source.
2. Chlorine, iodine, and ozone are most often used for chemical disinfection.

It contains alkaline pH, which has detoxifying effects and also promotes a healthy digestion. The toxins and free radicals we ingest and absorb every day make our blood more acidic. Rainwater, with its alkaline pH, helps to neutralize our blood pH, thus helping to make our body function in a more efficient manner.

Rainwater harvesting is common in homesteading. The Federal Government does not have any laws or restrictions regarding rainwater harvesting. Most states allow citizens to collect rainwater and even encourage them to do so.

Rainwater, on the other hand, contains concentrations of sodium and potassium ions that dissolve soap and lift soil. Just a few generations ago, folks would bathe and wash clothes in rainwater with no soap whatsoever. Great-grandma knew the cleaning properties of rainwater and always saved enough to wash her hair.

Unfortunately, if it’s heavy rain I will usually have no choice but to re-wash. If it rains heavily, the washing tends to get splashed with muck and grass and things.

Rain softens the clothes…so in a way it’s beneficial. The biggest problem could be the weight of the water could stretch the clothes where the pegs attach to the clothes. rain water contains alot of pollution which contaminates clothes. Rainwater is probably better cleaner than tap water.

While the occasional light shower may not be a problem for your washing, it it rains for a couple of days you will probably need to rewash or rinse your laundry to avoid a whiffy odour. That can happen within two days, and yes you probably will need to re-wash it, or put it through a rinse cycle.

Rainwater is said to have better benefits than any other water you would normally use. Rain water is supposedly considered “soft water” which is great for your hair considering it doesn’t dry out your hair like hard water (tap water). It also is said to help cleanse your hair better.

Hanging your washing on the line in the best method for drying, however, this means you’re at the mercy of the weather. The reaction in the comments was mostly in favour of leaving clothes on the line for as long as they need to be dried, even if that means leaving them overnight.

Most people are comfortable with washing clothes or flushing toilets using rainwater. But experts say that rainwater is completely safe for bathing and showering. Also, bathing in rainwater has some great health advantages. Rainwater is soft by nature, this means there are less minerals dissolved in it than hard water.