Originally Posted by Burn
Well, you want as much flow as possible, but you won't be able to flow much more than 3 GPH because the restriction is too much, you can have a 5HP pump and you still won't be able to flow more than 3 GPH in the Storm.
Correct. So there is no reason in getting a pump that is above 350 gph or so... I would highly suggest the D5 however, because not only does it have good gph and head ratings, but it is COMPLETELY silent and I am not joking at all. It also has 5 speed settings so you can tone it down to experiment with different GPH ratings vs. temperature. Also if you ever decide to go for a high flow block, you will be able to transfer your pump without hesitation.