Getting rid of Vaseline

[Sunray11A]

I read somewhere that a solution of washing soda will remove Vaseline from my kegs but can't find the post. Would someone please let me know the correct soda to water solution, and how to use it?

Thanks!

[crafty john]

I use about 4 tablespoons per litre of hot water.

[Sunray11A]

Crafty john, thanks for the reply.