the conversation went like this.....think your up for it?
Yo Bra... I have some thoughts on this, as I built and tested several variations before arriving at my current triple-post variation of the Stink Flower unit.
Sprayhead count is not as big a factor as the overall length of plumbing, turns, filters, etc you are using. For a single res, setup with 50 - 60 plant sites, I do not believe the EcoPlus 1056 will cut it.
Go with Stinks rec about using a sump pump with a filter - far and away the best bang for your pump dollar. A Little Giant 1/5 would work nice, you can get a FloTek 1/6 pump for less than $80 bucks at Home Depot. These are nice pumps.
When shopping pumps, it is the head foot, or max height, that is more important than GPH. If you are going to be using a single res - you will have a considerable length of plumbing for the manifold and spray bars of a 60 plant setup.
On that note, go with 1 gallon per plant for res sizing (or bigger!). I would suggest using a 75 gallon res (so you don't have to fill it to the top), though a 100 gallons or more would not be excessive. The larger your res, the more stable your PPMs, PH, and temps will be. If you want to leave for any number of days, you will need a large res for sixty thirsty girls (they drink like fish and aren't a cheap date)!