Blumat watering system question. I am going to get another blumat system for my 4x4, but am not sure what I will need.

I would recommend 1 tropf blumat and 1 maxi blumat per pot, the maxi blumats are longer so will start watering when the bottom of the pots dry out. I would also add 1 extra drip emitter per blumat to cover a bigger area. that would make up to 4 irrigation points per pot and should be sufficient for a 10-gallon pot. And you would have enough equipment to just transfer over to raised beds without buying new stuff. Even thou I would recommend the BlueSoak for beds.