How to Reduce, Recycle and Reuse RO Waste Water? 1
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How to Reduce, Recycle and Reuse RO Waste Water?

As one of the newer and most popular concepts is gaining popularity and helping your plants have rich amounts.

In most households, the usage of RO water purifiers is common. However, very few people are aware of the ill effects they have.

As most of us know, it is not surprising as RO water purifiers are reliable purification systems for water and are commonly found to have the huge disadvantage of excess wastage of water.

So, the question that comes to your mind is whether you should stop using RO-based water purifiers or whether you prevent worrying about the wastage that it leads to.

Do You Know That Water Wasted From Ro Are Dangerous?

As per various water experts and even health authorities, certain factors might make you feel dangerous using RO filtered water.

As per their finding, the water is no-go zone one. It means that the water would have a high content of various dissolved solids (TDS).

Also Read: Best TDS Meter In India – Why You Need One?

So, that would make the water undrinkable. Furthermore, in certain cases, this water would be unsuitable for usage in daily chores. Along with that, it would be having a high amount of inorganic salts and even organic matter.

7 Best Ways And Test Methods Of Using Ro Wastage Water

The best means of using the wastewater from the RO system are the following –

1) Mopping The Floor

How to Reduce, Recycle and Reuse RO Waste Water? 2

The rejected and wastewater that you get from the RO could be used in the day-to-day chores of your home.

Of course, it can be great for scrubbing and mopping your floors. But it is important that you mix some quantity of good water along with the wastewater, as the high residue of salt and TDS would leave stains.

2) Using For Car Wash

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Many studies clearly show that washing a car takes around 10-14 liters of water. And the best way to avoid using freshwater for that would be by substituting it with RO rejected water. Take a bucket filled with the RO rejected water and start cleaning your car.

3) Watering Your Garden

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One of the best and commonly used water utilization activities in every household is watering the plants. Have you ever tried the concept of vertical gardening?

You can use a watering can or bucket of the rejected water from the RO. The discharged water would have some basic minerals. But it is best if you start on a trial basis and see whether it works or not.

4) Dish Washing

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As we all know, in most households, the water filter is placed in the kitchen, so it would be great if you could use that water for kitchen purposes. And what can be the best way is to wash your plates using that water.

You might be surprised to know that the wastewater from the RO can be used for your sink. Studies clearly show that an average faucet takes around two gallons of water each minute, and that is most common when the faucet is continuously running.

No doubt, the RO wastage water would be the perfect alternative for reducing water’s excessive wastage.

You can even wash your dishes with this water and even pre-soak them before each meal. When you soak with the RO rejected water, it will help in removing the food and crumbs stuck on the plate.

5) Flushing The Toilet

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No doubt the RO rejected water is not good for bathing; still, the wastage water can be used for flushing and cleaning your toilet. Normal flushing would take around 4 to 6 liters of water, and that goes into the drain.

This is a huge amount, and that too in terms of the number of times one flush. Here you can limit the usage of the normal tap water by using the TDS water for flushing.

6) Bathing And Cleaning Your Pets

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If you have pets, you know very well that they need to be bathed regularly. Also, are you aware that you can use the RO discarded water for it?

Nowadays, only a few pets are sensitive to hard water; however, it is best to dilute the RO wastage water with common or ordinary tap water. Furthermore, you need to clean and towel dry the pets after bathing them.

7) Pre-Rinsing Laundry

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The laundry is also one of the major procedures where a huge quantity of water is used. In such a case, you can use the RO discharge water just for pre-rinsing.

Here the dissolved salts present in the water would remove all the stubborn stains.
But keep in mind that delicate fabrics would not react properly with the TDS water. So, please dilute the water with two liters of fresh water.

How Can One Reduce Water Wastage Present In RO Purifiers?

Most of us know that water is very scarce in its consumable form, and most users are for drinking. To reduce the wastage of water, you can add a tank that would collect the wastewater. You can use that water for household needs.

Could You Use Ro Wastage Water For Bathing?

As it has a high amount of impurities and salt, it is not recommended to use the RO wastage water for bathing. The presences of the high TDS clearly state the hardness of the water.


Well, it is a great idea if you can recycle and reuse the RO wastage water. So, go ahead and try it.

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