Recommendations for a water pump for 16 site plant 1inch pvc 2 manifolds

I currently have a Wayne 1/2 hp submersible pump, idk if it’s the pump or the set up I have that’s not distributing equal watering to all the sites. All the tubing are same length

Pic of the setup please?

Often if you run the main line in a loop off the pump feeding it from both ends that helps even things out. Another trick is to put a valve on each takeoff so you can equalize flow by reducing flow to the sites that get the most.

Iwaki aquarium pump.

Your manifold needs to be bigger than your run outs. Basic fluid dynamics.

Water flows in the path of least resistance. Fittings will have an equivalent foot of pipe length in terms of resistance. Once water goes past that point its easier to flow through the first fitting. When making the manifold bigger it fills the bigger pipe and then distributes to the smaller run outs.

Renfro said:

Pic of the setup please?

Often if you run the main line in a loop off the pump feeding it from both ends that helps even things out. Another trick is to put a valve on each takeoff so you can equalize flow by reducing flow to the sites that get the most.

Click to expand...

firsttimeARE said:

Your manifold needs to be bigger than your run outs. Basic fluid dynamics.

Water flows in the path of least resistance. Fittings will have an equivalent foot of pipe length in terms of resistance. Once water goes past that point its easier to flow through the first fitting. When making the manifold bigger it fills the bigger pipe and then distributes to the smaller run outs.

Click to expand...

I got open flow manifolds floraflex and here’s some screen shots from a video. Lights are off rn

Pics would help. I thought u were talking rdwc

1ManTeam said:

I got open flow manifolds floraflex and here’s some screen shots from a video. Lights are off rn

Click to expand...

Yeah I really can't tell anything from those images. Do you have more than one manifold? How is the main line to the manifolds configured? I am assuming you have multiple manifolds and that each manifold is distributing equally to the sites it feeds but that each manifold is getting different rates off the main trunk line.

Running the main line in a larger diameter like 1 inch, and looping it so that both ends are fed from the pump will help equalize the flow somewhat although the manifolds that are in the middle of the trunk would likely get less flow than the ones on the ends closer to the pump. You could install a valve at each manifold so that you can decrease the flow on the ones that are closer to the pump, equalizing the flow to each manifold.