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Greywater Recycling

Water in Kathmandu is scarce. Solving this scarcity for a household is expensive; households spend 4000 rupees a month on tankers of water. Why flush this down the toilet? With SmartPaani water recycling systems, save money and improve the environment in your house with a green garden and clean walkways. Additionally, this water recycling system is plant based and can be an attractive centerpiece for a garden. Install a SmartPaani water recycling system today and enjoy reduced water bills, a green garden, and clean home.

 

What is water recycling?

It’s simple. Water from the kitchen, laundry, and showers is conveyed through a plant-based filtration plant after which it can be re-used for housecleaning, toilet flushing, gardening, car washing and more. The filtration plant is attractive and the water does not smell.

 

Does recycled water have disease risks?

Properly treated and handled water does not. The water filtered through our systems can be stored for a week and used for all non-potable uses (everything except the shower, kitchen, and drinking).

 

Is it expensive?

Not really. It is slightly more expensive than rainwater harvesting, but it can save 50% of your water needs for the whole year. In addition you can keep green vegetable gardens without using new water which saves money. The costs might be higher, but the year-round financial savings are also higher. Like rainwater harvesting a water recycling is a one-time investment with very minimal maintenance costs.

 

What is the maintenance required?

Very minimal. The plant-based treatment plant has to occasionally be checked to make sure all the water remains below ground-level during treatment and the system is not clogged. Simple maintenance check ups 1-2 times a year are enough.

 

What is the technology used?

At the moment we used constructed wetlands (CW), a well-tested method for treating all forms of wastewater. Constructed Wetlands are used to treat even mine drainage, some of the most toxic water in the world. They have also been identified as one of the most effective greywater recycling methods both treatment and cost-wise. Constructed wetlands have been used widely around Nepal for both wastewater treatment and greywater reuse. The Environment and Public Health Organization (ENPHO) has been instrumental in promoting, implementing and researching the technology in Nepal. The first CW system was installed in Dhulikhel Hospital in 1997.

 

Why don’t I used unfiltered groundwater instead?

Unfiltered groundwater is unreliable and has hidden costs. Ever wonder why your bathroom is stained yellow? Or why pipes and fittings break quickly? It is because of the iron and other minerals in groundwater. Recycled water has none of these minerals and will prolong your pipes and allow you to keep a very clean and safe house. The addition of active chorine to the treated water can provide an excellent way to keep your house sanitized and safe for your loved ones.

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