drip system irrigation/water advice

[remf33]

I wasn't sure where to put this question, but....
I have set up a drip system for my raised beds. (Click and Drip with a timer attached to a water butt.)
I know I should have a) asked this earlier b) done a trial run (too late now), but a) well, foolish of me and b) rain water (in the water butt) is too precious to do a trial run at the moment.
My system delivers 180ml per hour and each raised bed is about 1.2m square.
I was just wondering if anyone else has set up anything simlilar and if so how and often to water.

[Jungle Jane]

I’ve got a watering system that’s got a timer on the garden tap,not water butt,but quite similar. I use it when going away but I set it up the day before going to make sure it gives the right amount of water. If it’s not enough water,change the minutes to longer. Once a day for twenty minutes would be a guess with your system but if you try this,you can adjust it if needed?