powerheads questions??

vs

New Member
hey i have a max jets 1200, i have three. i put one on top, one in the middle, and one on bottom. is that normal to control the wave? i also have this knob, when you turn it a full blast comes on and causes many bubbles (strong waves). what do you guys recommend? full blast or medium or no bubbles wave at all? does anyone know what i am talking about?
 
Top