During the second factory visit, the customer noticed that the quotation included a 5-gallon filling machine but did not include a 5-gallon blow molding machine.

Initially, this caused some confusion because he assumed both machines were required.

Instead of simply recommending additional equipment, our engineers carefully explained the differences between PC (Polycarbonate) bottles and PET bottles.

For commercial 5-gallon drinking water production, reusable PC bottles are the industry standard. A single PC bottle can be cleaned, sanitized, refilled, and reused many times, dramatically reducing packaging costs over its service life.

PET bottles, on the other hand, are designed for single-use applications. Producing PET 5-gallon bottles would require an additional blow molding machine, higher operating costs, increased energy consumption, and equipment that would have a relatively low utilization rate for this project.

Considering the customer’s production capacity and business model, we recommended purchasing reusable PC bottles instead of investing in unnecessary blow molding equipment.

Although selling additional equipment would have increased the order value, we believed that providing the most practical and economical solution was more important than maximizing equipment sales.

After understanding the technical differences and long-term operating costs, the customer fully agreed with our recommendation and appreciated our commitment to finding the right solution rather than simply selling more machines.