Not to disagree with the recommendation above but... I disagree. Completely.
The answer is not always a bigger pump, (or a half a dozen of the Fujimac 150's). Geeze.
Good intentions, bad math, and a little biased.
Purdue,
Welcome to the forum. You put together a fairly solid plan, and it will work.
The diaphragm pumps are an excellent choice.
I only make a couple recommendations to consider.
* Run a 3/4" pex tubing on the 50ft run to the water.
* Go with low back pressure diffusers. The Matala 12" would be perfect for you.
* Consider up-sizing your hose. It's a one time cost.
Report back on your success.
