Manifold and distribution pvc pipes, correct sizes?

Hello,

I am about to finish my aero system and I would like to know if the PVC piping size looks OK before I glue everything together.

I have 39 sprayers (160l/h / 4.2gl/h) which equal 6240l/h or 1642gl/h in total. I have a 6500l/h main pump which will feed the sprayers and a 3000l/h secondary pump which will pump the nutrient solution back to the reservoir.

To keep reservoir temperatures cool (no budget for a water chiller atm) I decided on relocating it to another room. The distance from the reservoir to the manifold will be 5m.

I have a 1" pvc pipe for the manifold, then six 1/2" pvc distribution pipes (max. 7 sprayers per tube) and 1/4" tubing for the sprayers.

The manifold (I.D. ~27mm) will be mounted on top of the tray for top feed sprayers and will be connected to a 1" garden hose (I.D. ~25mm).

Do you think this will work out or do I need larger or smaller diameter tubing for the manifold or the distribution tubes?

Also does the garden hose seem to have the right size?

Wondering how you intend to put the 1/2" pipe into the 1" pipe. Also I thoguht 3/4" was standard for hoses, Might be better off using standard things like tees, and a 3/4 to 1/2 compression adapter. I strongly suggest fitting some pieces together before hand, if they feel snug, its probably the right size.

Also, if your secondary pump isn't pumping at the same rate as the other one, your tank will either overfill/flow or it might pump all the water away too fast. I used a bell siphon to fix this problem in my setup.

if you figure out a nice solution for the flexible hosing to the sprayers, id be interested to hear it. I wound up just drilling 1/8th inch holes into some 1/2" pvc and just forcing the sprayers to thread the hole in the pvc.

you should be fine depending on your water pressure. over about 40 psi that pvc is gonna leak though.