That's a typo. The Eheim is rated for 317gph, not 7317, at 0 head.
Your setup only has one flaw: the 3/8 tubing.
Since you have a Maze3, you should be able to measure the effective cross section of the channels. If you compare those with the cross section area of 3/8 tubing, I'm sure you'll find that 1/2 tubing would serve you better. It's also a better fit with the 1250. As a guideline, your tubing size should be one step (1/8) larger than the cross section of the wb channel, just to make sure that the tubing doesn't become a restriction.
BTW, the Eheim really isn't the best choice. It's got a good reputation for reliability, but if you look at the specs closely, it's really not much of a pump.
Check out the "pump roundup" thread for more info.
|