If your kits are six weeks old they should be out and about with the jill by now and drinking water on their own, all I do is make sure all my drinkers are as low as I can set them, when the jill drinks the kits will pick up how to do it from her, then its just a case of making sure you dont raise or move the drinkers are you feeding dry food?
Thay are on meat. Thanks for the advice on the water bottle pal atb jon