Grey & black tank care

Understand what each holding tank does before choosing a procedure. Your RV manual and tank-system manufacturer remain the first reference.

Grey & black tank care

RV grey water vs black water: know your tanks before you dump

Understand what normally goes into each tank, why both need proper disposal, and how tank layout changes your planning.

By Rob Knott · 2026-10-19 · 8 min read

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Where should I start?

Use your own tank sizes in the water planner, or check source-linked Washington stations. Always follow operator restrictions and your RV manual.