Process of flushing coolant in an ek4 vti

[Ithshaam]

Hi guys

I recently added some antifreeze into my coolant reservoir, the coolant in the reservoir was green however I added pink coloured antifreeze. I have done some research and mixing different coloured coolant is not recommended.

What should I do ?

Should I do a flush, if so what's the process in flushing the coolant.

Just to note I only added a little bit of pink coolant and then topped it up with water.

Thanks in advance