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Non-Standard Plumbing in Some Chinese Spas

Understanding Plumbing Challenges in Some Chinese-Built Spas

While most spa manufacturers use internationally standardized plumbing sizes, some imported spas feature proprietary pipe dimensions. These non-standard sizes can complicate repairs and maintenance, as compatible parts may be difficult—or even impossible—to find.

Why Proprietary Sizes? - Some manufacturers choose custom piping to reduce costs or to create a system that relies on their exclusive parts. While this approach might benefit production, it often complicates upkeep for spa owners.

Replacement Part Challenges - With standardized pipe sizes, parts like elbows, connectors, and unions are easy to source from various suppliers. But proprietary piping means that standard fittings won’t align, turning even minor repairs into a significant hurdle.

The Long-Term Impact - For spa owners, non-standard pipe sizes may lead to unexpected downtime and higher repair costs. In many cases, replacement parts need to be custom-ordered from the manufacturer, which can extend wait times and complicate maintenance.

Standard Plumbing Sizing Informaiton link here.