I'm tring to get an airoponics system up and running but I'm having issues with the air pump. I have the active aqua 8 outlet and on my 3rd one within a week. I always get to were 2 of the 8 outlets wont bubble my stones and when I switch them around the 2 that were working now are not and vise versa so giving up on the crappy thing. I hate the idea of using aquarium pumps because I would need so many which would require extension cords. is there a good one that's heavy duty that I can use to power 8 stones? I need 5 for the grow and 3 for my homemade cloner.