Whirling dynamiser vortex for water filter

There are many systems for vortex water dynamisation.
These are often expensive systems, impractical to use or slow down the flow of water.
I designed here a vortex based on a logarithmic spiral, also called spiral of growth. This spiral is stretched to form a vortex.
The product is a vortex tube. The system is placed at the outlet of a water filtration device, just before its exit at the tap. The dimensions of filtered outlets are standardized and are 7mm in diameter.
The water outlet pipe