First time making cider. 5 gallons of orchard cider, 5 campden tablets, waited 24 hours, pitched 1056 starter. 36 hours without any activity. When should I consider repitching?
I wouldn’t mess around. Throw in a pack of US-05 or whatever dry yeast you have on hand, and it will start up right away and turn out great.
I would let it go for a week first without panicking. Take a gravity reading after a week and then panick if nothing is happening.
I just did a cider and pitched White Labs cider yeast 48 hours after adding the campden tablets. Nothing happened for a week. Then I pitched Wyeast cider yeast 9 days after the campden tabs and had activity in 36 hours. It’s been fermenting happily since. 
I’d give it another day or two, but have some yeast on hand if nothing seems to start in that time.
