Which liner colour is better - white or grey?

Both are great colours. 

A creamy white liner creates more space visually and looks extremely pleasant at night. It allows the LED light effects to deliver full potential. A white liner is considered to look more luxurious and smart. 

A creamy white liner will require more diligent cleaning since anything that lands in the water will be visible. If your hot tub is going to be surrounded by big trees, you should keep this in mind.

A grey liner is not as glaring in the daytime and keeps the lights down at night. Many customers say it looks more contemporary and blends with nature better.

If you're curious, grey liners are more common among our UK clients, while more German buyers prefer the white ones.