How to Save on Your Monthly Electric Bill By Installing a Greywater System

How to Save on Your Monthly Electric Bill By Installing a Greywater System

What is a Greywater System?

A greywater system is a type of plumbing system that recycles water from your home to reuse for non-potable purposes like flushing toilets and watering plants. Greywater is the wastewater generated from domestic activities such as laundry, dishwashing, and bathing. Unlike blackwater from toilets which contains sewage, greywater can be reused after simple filtration and treatment.

Installing a greywater system allows you to capture greywater from your home and reuse it, rather than sending it down the drain. This reduces the amount of freshwater needed to supply activities that don't require potable water. A greywater system can lower your water usage by up to 50% and significantly reduce your monthly water and sewer bills.

How Does a Greywater System Work?

A basic greywater system has three main components:

The greywater is diverted into an underground tank or pipes instead of mixing with blackwater and going into the sewer system. It is then pumped or fed by gravity back into the home or garden when needed.

More complex systems may disinfect and treat the greywater more thoroughly using techniques like UV filtration, and integrate automation for control. However, even simple greywater systems can significantly reduce freshwater usage and sewer discharges.

Benefits of Installing a Greywater System

Installing a greywater reuse system has many benefits:

Estimating Savings from a Greywater System

The amount you can save on your utility bills depends on:

As a general estimate, a family of 4 with typical indoor water use can expect to save $30-60 per month during the irrigation season by reusing greywater to cover outdoor water needs. This can result in over $500 in annual savings from reduced utility bills.

Cost of Installing a Greywater System

A basic greywater system for a single-family home costs $2,000 to $5,000 installed. A more complex automated system with treatment can cost up to $15,000.

Factors impacting overall costs include:

While the upfront cost is significant, the water savings can provide a full return on investment in as little as 2-5 years through lowered utility bills. Maintenance costs are minimal with simple DIY cleaning and upkeep.

Evaluating Your Home

Before installing a greywater system, evaluate:

Consulting with a professional designer is recommended to design the optimal custom system for your home.

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