ᐅ Limescale in the drain (shower)

Hello, we have a walk-in shower and very hard water. Now, limescale has built up in the drain. What is the best way to clean the drain (at the top)?

Hot citric acid

I cannot imagine what you mean by "above."

Probably the grille/cover/trap inlet...

Mycraft schrieb:
Probably the grid/cover/trap inlet...

Exactly... so the "top" part where you step on and can see.

Hmm, does that really help? Citric acid

Citric acid powder is often used to descale various kitchen appliances. If not this stuff, then what else?
You can also scrub with half a lemon – that helps, at least with our sink.

Brief regards