#00019
Refill schemes that lean on consumer goodwill or regulation are fragile: goodwill stays niche, and regulation can be repealed and is fought by incumbents. A refill system only becomes permanent when it is genuinely more profitable for the operator than single-use plastic.
A direct-to-consumer refill service combining concentrate (no water shipped), fill-to-order labelling, ad-hoc orders batched against a cutoff so routes can collect empties, and a closed loop. Made durable by skipping the 30 to 50 percent retail margin and by customer retention.
Launch refill in hotels and multi-unit buildings before going direct-to-consumer. These give free route density (many units per address), a rational B2B buyer not fragile consumer goodwill, contract-based predictable demand, and a cheap place to prove the cleaning economics.