"Spa Hose" is a term in the DIY Cold Plunge Community that is often mis-used. This video will (hopefully) clear up the differences between Vinyl Tubing and Flexible (PVC) Spa Hose.
One of the mistakes I see is folks trying to bond vinyl tubing to PVC using primer and cement - this is a no-no. The beauty of true Spa Hose is that you CAN use PVC primer & cement with PVC fittings, it also connects to barbed fittings and is simply the best option when building a DIY Cold Plunge.
https://diycoldplunge.com/products/fl...