Iam using a 8 pot wilma system , what is best to use drippers or flood and is it best to water 24/7 or selected times ? Am using clay pebbles.
Personally, I understand why you're asking the question, but it should really be up to your plants. Some plants might need more water than others, so you will need to adapt to them instead of coming up with a schedule for them to follow.
Plants will be the ones that determine the right amount of water.
Personally, I think watering all the time can lead to more troubles, but if your plants and your setup indicate it, then you have to.