Oh for crying out loud. Does no-one know how to clean a toilet?!
Right – if it’s yellow let it mellow might be good for the planet – but it’s bad for the bowl. The yellow stains are your wee staining the lime scale.
PowerPlus won’t help – it’s just bleach. It is the biggest rip off ever – cheap supermarket thick bleach is as good.
Anyway – to clean your throne use Parazone Limescale Remover. Put LOTS of it in every day (and I’m talking third to half a bottle at a time). Make sure it’s spread under the rim and all the way around and don’t flush for as long as possible afterwards.
If you’re brave add bleach. It does make chlorine gas but unless you sit with your head down the pan you won’t die (probably).
Let the parazone do it’s stuff. If it’s turning out hard to shift don the rubber gloves and use a scouring pad to loosen the limescale. You need to get rid of all of it (as far round the bend as you can reach) as it’s harder for it to come back if there’s nothing to grow on or near).
Then just clean the bog more often.
I live alone (some may not be surprised). I clean my bogs at least twice a week with Parazone and then bleach them in between. I never have limescale or yellow stains.
Now go and get on with it. Dirty loos are just wrong!