Washwater Recovery
Capture pressure‑washing wastewater before it reaches storm drains. This category brings together recovery tools, containment, filtration, and transfer gear so you can plan how water moves from the work area to approved disposal.
Designed for contractors, facilities, and municipalities, these solutions help align field practices with local stormwater and sanitary‑sewer rules. Always confirm requirements with your permitting authority before you start a job.
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Washwater Recovery FAQ's
Are soaps always prohibited?
Rules vary, but soaps and detergents are frequently treated as non‑stormwater discharges that require capture and proper disposal. When in doubt, contain and recover, then discharge to the sanitary sewer if allowed by your local authority.
Can I let washwater soak into landscaping instead of capturing it?
Some authorities allow discharge to pervious areas when no detergents or problematic pollutants are present. Others do not. Always verify with your local program before using this option.
How do I size a recovery vacuum or pump?
Plan for at least the expected collection rate at the tool and the distance you must move water. Short, straight suction runs improve pickup. For long lifts or hose runs, use a recovery vacuum to a holding tank, then a transfer pump to move water to approved disposal.
What kind of filtration do I need?
Match media to the contaminant: sediment filters or bags for grit and fines; oil‑selective media or oil/water separation for petroleum residues; and screens or strainers ahead of pumps to protect equipment. Replace media when flow slows or after heavy loading.
Where can I discharge recovered washwater?
Options depend on local rules. Common pathways include discharge to the sanitary sewer through approved connections with any required pre‑treatment, or hauling to an approved facility. Discharging to storm drains or surface waters is generally prohibited.
Do I always have to recover pressure‑washing water?
In many U.S. jurisdictions, non‑stormwater discharges (including pressure‑washing wastewater, especially when soaps or pollutants are present) are not allowed in storm drains. Capture is commonly required near inlets, in the right‑of‑way, or whenever pollutants could be carried off site. Check your local MS4 and sewer authority for specifics.
