What is the best way to clean Vinyl?

@antinn thank you for your reply! Very helpful and precious information!

Very good to know the exact amount to use for both the solution and the rinse cycels!

I'm not using the same brush throughout, I have a goat hair brush for applying the solution and a make-up brush to apply the DIW

Polysorbate-20 is indeed available and very cheap too! 

As it is not as good as Tergitol 15-S-9, might a small amount of IPA help to make it more effective?

Dear @antinn I greatly appreciate for sharing your knowledge and your experise and I would like to kindly ask you about rinsing with tap water.

I'm currently using a Pro-ject VC-E RCM and recently I was provided by a friend from US a small bottle of Tergikleen and I'm very satisfield with the cleaning job it does. I would prefer to use Tergitol but unfortunately it is not easy to find it in Europe.

Tergikleen manufacturer recommends a very good water rinse after the application of the product and I'm not sure if I'm doing it properly using a spay bottle of DIW that I apply with a make-up brush and then I vacuum. I suppose that a good rinse means several cycles, but not sure how much is enough...

My question is what if after the application of Tergikleen I rinse the record with tap water under the tap, then vacum and finally rinse again with DIW and vacuum again?
The water hardness in my area is 137 mg/lt which is considered as soft.  

Do you think adding this tap water rinse cycle in my process I risk of leaving mineral deposits behind?

Thank you for your advice!