Pump pressure relief

First off I would like to thank everyone here for the wealth of information thats available. Also this is my first post so excuse me for my newbness.

I am working on a DIY design, designed by myself. Im using a 5 x 5 fence post, 4 net pots, 5 gallon bucket, a mag drive pump and 8 misting nozzles, 2 at each net pot. I know this is not a true aero setup but rather a experimental project.

My question pertains to the pump, I'm using a Danner Supreme Classic model 3 rated at 350 gph at 0ft. Once hooked up to the feed line that feeds the misting nozzles I'm expecting the pump to become overloaded or overworked. Is the some kind of pressure relief valve that can or should be put inline to lessen the load on the pump. I would like to run the pump 24/7.


Like I said above I am somewhat new to this and am open to suggestions, just take it easy on me!

Well I use a smiler set up for my veg room. It's a 350 gph pump feeding a piece of 3/4inch pvc with 12 sprayer heads. I wouldn't worry to much about the relief, because of my 12, the end 2 on either side are spraying at 30% compared to the rest, so 8-10 is probably just right for a 350 gph pump without much , if any, back pressure.

My original plan was to have a feed with no return. With no return and low flow nozzles the pump is bound to have some kind of load on it. Just curious what this does to the pump drive impeller? I'm thinking about adding a simple ball valve on a return line to allow some pressure to build but allowing some to bleed off, lightening the load on the pump. Am I overthinking this one?

I'm not sure if you are or not. Don't quote me for sure. But i **thought** at least as it pertains to regular aquarium pumps. That head pressure, as long as it does not stop the flow of water completely is not an issue for the pump. There are several different pump styles so I'm not sure if that pertains to all of them or just the type of impeller design used in standard aquarium pumps.

I might be picturing your setup wrong but would installing a manifold at the middle of the fencepost equalize pressure? How do you mist water in with no drain back to the reservoir? Partial blockages or changes in path pressure shouldn't interfere with a pump that size. Ask anyone who's done an undercurrent grow.