dutchy101 - what are you planning to get rid of? Limescale?
with regards to chrome…. I don’t think it damages chrome. It’s common practice to soak portafilters in PulyCaf. And those are chrome plated. Did that for 3 years with my Gaggia Classic. 😊 I don’t bother soaking baskets or bottomless portafilters anymore as I clean them up straight away. I did do that once, but it came back as clean as it went in.