Greywater is the “used but not too dirty” water from your sink, shower, and washing machine. It’s not gross—it’s basically secondhand water. Instead of sending it to the sewer, reroute it to your garden.
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You need a simple diverter valve. It costs about $30. Your plants will love the tiny bits of soap (biodegradable soap, please). You’ll feel like you hacked the system. Just don’t use it on veggies you eat raw. Keep it for flowers and trees.
The Dishwasher Secret
Hand-washing dishes? That uses up to 27 gallons. A modern dishwasher? Uses 3 gallons. Yes, you read that right. Running your dishwasher is actually more water-efficient than scrubbing by hand.
Don’t pre-rinse—scrape food off and let the machine do the work. You’ll save water, time, and your dishwashing sponge will retire early. It’s a victory lap for everyone.