Sunday-I pressed a gallon of crab apple juice, added 1 level teaspoon of Campden. Shook and left in demijohn.
Tuesday evening-Added crab apple juice (3 litres) to my 4 gallon John Bull cider kit. Fermentation stopped and the nice head with all the yeast went away!
Wednesday evening-Added half a pack of Ritchie's champagne yeast (yeast used to ferment my previous cider) which didn't seem to do much.
Suspects:
a) I think that the campden powder may have killed the yeast in the kit and has killed the yeast I put in yesterday.
b) I am fermenting down from 1062 (target ABV=8.2%) so maybe the alcohol content killed the cider yeast.
Should I try adding the extra yeast in a few days? Could I bottle it at 1010? Is it completely useless

Thanks
Joseph North