Whether you charge a small cup or water tank , the effect is same if the water is charged correctly.
The number of rotations should be increased with volume of water.
Imagine that when you prepare Sharbat for one person you will add little Rose Syrup….when you prepare for 8 ppl you would add more Rose Syrup.
Now though there is no direct correlation but an analogous correlation where your quantity of Rose syrup is similar to number of rotations by VK.
For upto 2 lit water please rotate slowly atleast 20 times.
Just a thought…some people when they prepare charged water daily they feel connected to healing.
Maybe you are charging the water correctly but since you are charging the water only once a week …its only your feeling that you miss that connection.
Maybe you can charge 500 ml water daily and see…how you feel.
It takes only few minutes to charge water.