more help with gate valves??? , i have the euro reef es5-2 , i was add a gate valve to it, does it matter what the size of it is , i have a 1-1/2 on there and the bubbles are always foaming over the top of the cup, i've tried adjusting the height of the riser tube and dosent make too much difference, i like the original setup still, do i have to have a certain height for each tube??, do i have to have a smaller gate valve to 1-1/4, the 1 i have is really big, bigger then the 1 most of you have used,
what are some things i can do to make this work??