What is a Greywater System? The Benefits of Water Recycling

Given that usable water is becoming increasingly scarce every year, it's essential to consider how you can help conserve this precious resource. One way homeowners can boost water conservation is to install greywater systems. These systems collect gently used water from sinks, showers, and laundry, then reuse it for non-potable purposes like irrigation or toilet flushing. Not only do they lower your water bill, but they also support a more sustainable lifestyle.

Between 50% to 80% of water used in homes can be recycled, much of it in the form of greywater. Installing a greywater collection system in your home could result in lots of gallons saved.

What Is Greywater?

Greywater is lightly used water from household activities like washing hands, taking showers, or running the washing machine. This water isn’t contaminated with waste (like toilet water) but isn’t clean enough to drink. By redirecting greywater, homeowners can cut down their freshwater usage and support eco-friendly habits.

What Is a Greywater System and How Does It Work?

So, what exactly is a greywater system? Greywater systems for homes collect water from laundry, bathtubs, and bathroom sinks, then redirect it for reuse. They’re a great way to save water in the bathroom, laundry room, kitchen, and more. The system typically includes:

• Collection pipes that divert greywater from drains
• A filter or screen to remove lint and particles
• A gray water tank to hold the water temporarily
• Distribution lines that send the water to your garden, landscaping, or toilet tank

If you look at a greywater system diagram, you’ll be able to better understand how everything fits together. Some systems treat the water further, depending on local health codes and end-use.

What Is a Gray Water Tank?

A gray water tank stores greywater before it’s used or treated. These tanks are typically made from plastic or fiberglass and come in sizes ranging from 30 to 300+ gallons. Depending on the system, tanks can be installed underground, outside, or in a mechanical room indoors.

What Is the Primary Use of a Typical Greywater System?

Most greywater systems are used for:

• Irrigating landscaping and gardens
• Flushing toilets, which typically account for 30% of household water use
• In some advanced setups, pre-treated greywater may be used for washing machines

What Are the Benefits of Greywater Recycling Systems?

There are many benefits of greywater recycling systems:

• Lowers the need for costly wastewater treatment. Recycling greywater requires less energy than saltwater does using desalination systems.
• Reduces the amount of sewage and septic wastewater. When you lower the load on your septic system in such a way, the system can be kept in service for many additional years.
• Lowers your water bill every month. Because they reuse the same water more than one time, your monthly utility bill will be lower.
• Preserves freshwater supplies. Diverting greywater means less strain on municipal water systems and aquifers, helping to preserve clean drinking water sources for essential uses.

• Supports drought-tolerant landscaping. Greywater provides a reliable irrigation source even during dry spells or watering restrictions, making it easier to maintain healthy plants without relying on potable water.

Grey Water Systems for Homes: What to Know Before Installing

Thinking about installing a greywater system? Here’s what to keep in mind:

• Local plumbing codes may restrict what you can do with greywater.
• You’ll need to regularly maintain your system to prevent clogs and odor buildup.
• Filtered systems are better for long-term use and can prevent damage to irrigation lines.
• It’s best to choose a professional installation to ensure compliance and functionality.

Are There Any Disadvantages to Using Grey Water?

Like any system, greywater recycling comes with tradeoffs:

• Improper installation can cause cross-contamination.
• Systems may require maintenance and occasional cleaning.
• Some greywater can contain soaps, detergents, or oils that are not safe for all plants.
• Greywater is not drinkable and cannot be used for cooking or bathing.

Ready to Recycle? Call the Pros at Roto-Rooter

Greywater systems are a smart way to lower your water bill, reduce waste, and make your home more eco-conscious. Whether you’re curious about setup, have questions about your plumbing code, or need help designing a system, Roto-Rooter can help. Contact us today to get started on your sustainable plumbing upgrade.

FAQs About Greywater Systems

What is an example of a greywater system?

A common example is a laundry-to-landscape system, which channels washing machine water directly to garden irrigation lines.

Is grey water the same as sewage?

No. Greywater comes from sinks, tubs, and washers and is free of human waste. Sewage (or blackwater) includes toilet water and requires more complex treatment to reuse.