MokausiLietuviu

A similar question - what is the funniest or most inappropriate use of Excel you've come across in the wild? In my old job a chap laid out graphics on multiple Excel tabs instead of learning how to use Powerpoint.

It's both oxalic acid, and mineral abrasive. The mineral feldspar isn't as abrasive as some so it won't scratch glass or owt, but it'll scratch weak mineral deposits

So it's both acidic - chemical - and abrasive

I'm a chap whose urologists have all been built like a brick privy. I envy your patients - your presence is a blessing for them.

I dont know if they're available in Europe, but you can get generic oxalic acid cleaner that does the same job

In other parts of Europe, we can buy generic oxalic acid cleaner