Re: Unblocking a toilet....
If you think it's still below the waterline than try some caustic soda (aka sodium hydroxide), it will get warm, just don't let it get too hot. Add to the pan, give it a good stir and wait 15/20 mins or so. A good rodgering with a plunger wouldn't do any harm either!
Hope this helps, though I think maybe the help's needed a bit nearer to the source!
Cheers
Grim
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