About GreywaterHub
Free, accurate greywater information for every American homeowner.
GreywaterHub exists to make residential greywater reuse accessible to every American homeowner. The information already exists — buried in state administrative codes, county health department PDFs, and academic extension publications. It's scattered, technical, and often years out of date. We translate it into plain language and organize it so a homeowner can find what they need in minutes rather than hours.
Greywater reuse reduces household water bills, protects landscape investments during drought restrictions, and reduces demand on municipal water systems. The barrier for most homeowners isn't motivation — it's not knowing whether it's legal, how to do it safely, or whether the effort is worth it. We remove that barrier.
GreywaterHub covers residential greywater reuse across the United States:
Every guide on GreywaterHub is researched from primary sources — state administrative codes, official agency guidance documents, county health department publications, and university extension service materials. We cite the specific statute or regulation so readers can verify independently.
When regulations are ambiguous or locally variable, we say so clearly rather than overstating certainty. When we don't know, we say so. All guides carry a disclaimer that this is general information and that readers should verify requirements with their local authority before installation. State regulations change — our guides show the review date, and we prioritize corrections to factual errors above all other updates.
We cite specific state statutes and administrative codes — not secondary summaries or other websites.
Greywater laws change. Every guide shows a review date. Factual corrections are prioritized and typically addressed within a few business days.
We don't provide legal, plumbing, or engineering advice. We tell you when to call a professional or your local authority.
Advertisers have no influence over our editorial content. Brand mentions are based on documented technical suitability only.
GreywaterHub is an independent informational website. We are not affiliated with any government agency, water utility, contractor, product manufacturer, or advocacy organization. The site is funded through display advertising and, where noted, affiliate links to relevant products — neither influences the accuracy or direction of our guides.
We are a small team of researchers and writers with backgrounds in environmental policy, residential construction, and technical communication. We don't claim to be licensed engineers or attorneys — our job is to translate complex regulatory information into language homeowners can actually use, and to point clearly to the right authority when professional guidance is needed.
Found an error? We want to know. Factual corrections — particularly wrong statute citations, outdated permit thresholds, or changed rebate amounts — are our highest priority. Use the contact form and include a link to the official source if possible. We review all submissions and typically address factual errors within a few business days.