中水回用计算器
使用中水回用计算器评估家庭灰水回收再利用的潜力和经济效益。计算淋浴、洗衣等灰水的可回收量，估算用于灌溉和冲厕可节省的水费和水资源。
Daily Greywater Available
39.0 gallons
Daily Greywater Available vs Water Rate
公式
How to Calculate Greywater Reuse
Greywater is wastewater from showers, sinks, and laundry (not toilets or kitchen sinks) that can be safely reused for irrigation.
Formula
Reusable Greywater = (Shower + Laundry + Sink) * Reuse %
Sources
Greywater can reduce household water consumption by 30-50%.
计算示例
A household generating 40 gal shower, 15 gal laundry, 10 gal sink daily, reusing 60% at $5/1000 gal.
- 01Total greywater: 40 + 15 + 10 = 65 gal/day
- 02Reusable: 65 * 60% = 39 gal/day
- 03Annual: 39 * 365 = 14,235 gallons
- 04Annual savings: 14,235 * $5 / 1,000 = $71
常见问题
What is greywater?
Greywater is gently used water from showers, bathtubs, bathroom sinks, and clothes washers. It does not include water from toilets (blackwater) or kitchen sinks (due to grease and food particles).
Is greywater reuse legal?
Many states allow greywater reuse for subsurface irrigation with simple permits. California, Arizona, and Texas have relatively permissive greywater codes. Always check local regulations.
Is greywater safe for plants?
Yes, when using biodegradable soaps. Avoid using greywater on edible root vegetables or leafy greens. It works well for fruit trees, ornamental plants, and lawns.