When should I add campden tablets?
So I'm still pretty new to home brewing, I recently finished my first batch of cider from a kit and the end results where ok. Nothing amazing, but it was something I made and feels extra rewarding.
Now onto the question, I plan to start my 2nd brew tomorrow, again, from a cider kit (This kit to be precise). I will be using tap water for my brew, since it's not really possible for me to transport 20 litres (5 gallons) of bottled water, without a car. I want to know, at what stage should I add my campden tablet(s) to remove all chlorine from the water?
Should I put the water in the bucket tonight, add the tablet(s) and then leave it 24hr, before adding the mixture, sugar and yeast?
Or, should I wait till tomorrow, add the sugar and mixture, then add the tablets and wait 24 hours before adding the yeast?
Bonus Question: Best ways to add carbonation to my cider? The sugar added into he pressure keg created lots of c02 to push the liquid out the tap, but the cider itself is flat when tasting.
Thanks and sorry for the long post :)