Is there anything eco-friendly that is as good as Harpic 100% Limescale remover??

[girlandboy]

I've tried white vinegar and various scourers, but nothing seems to be as good as Harpic.
Can anyone come up with some suggestions please - I'm not really happy pouring this chemical down the loo. But it's soooooo effective!

Coke?

No, nothing.

Aha! Coke, I'd forgotten about that one. I'll try that one next.
Any more???

i have to say IMO ecver limescale remover is pretty good

Pumice stone got rid of my limescale - it's a Kim and Aggie tip, doesn't damage the porcelain.

Bio-d toilet cleaner left for half a day to soak preferably with as little water in the bowl as possible. It worked wonders on my loo.

Thanks ladies, much appreciated - I'll give em a go.

I've never used Harpic, but we use Ecover limescale remover and love it, think it's brilliant.