Fluid dynamics and the art of watering

worldspawn

Well-Known Member

• Oct 14, 2021

• #1

Hi,

so I am trying to water out of 8 ring feeder ands almost all the flow is going to the last 4, none at all to the first 2.

Obviously this is not how to do it. Could someone advise please?



Please excuse the unnecessary censorship.

 

J232

Well-Known Member

• Oct 14, 2021

• #2

1/4” or whatever size ball valves to regulate the flow on each ring. Or a ball valve to regulate the flow to the back 4.

 

lusidghost

Well-Known Member

• Oct 14, 2021

• #3

One for each ring is your best chance for sanity. Are the plants in a witness protection program? Those elevators look nice.

 

lusidghost

Well-Known Member

• Oct 14, 2021

• #4

You may need to get a more powerful pump too.

 

myke

Well-Known Member

• Oct 14, 2021

• #5

The whole line needs to be a manifold like your make shift end plug. You’ll have equal pressure then at each spigot.

 

myke

Well-Known Member

• Oct 14, 2021

• #6

So if you plugged all your lines and stabbed into your loop at the end be the same thing.

 

lusidghost

Well-Known Member

• Oct 14, 2021

• #7

myke said:

The whole line needs to be a manifold like your make shift end plug. You’ll have equal pressure then at each spigot.

Click to expand...

Even then it’s tough and having ball values at each pot helps fine tune them. You also have to consider how each plant will require slightly different amounts of water. Especially if you’re running multiple strains.

 

worldspawn

Well-Known Member

• Oct 14, 2021

• #8

Shop was out of 13mm valves, I'll get some when they come in.

myke said:

So if you plugged all your lines and stabbed into your loop at the end be the same thing.

Click to expand...

Guess I'll redo it then. Happiness is cutting pipe under 600w

Would it work if just looped it back at the end all way to where it comes off the wall. Or do I need even distribution around the loop

 

worldspawn

Well-Known Member

• Oct 14, 2021

• #9

lusidghost said:

You may need to get a more powerful pump too.

Click to expand...

I put two in parallel (only change) and it improved slightly. Still very unbalanced.

 

myke

Well-Known Member

• Oct 15, 2021

• #10

worldspawn said:

Shop was out of 13mm valves, I'll get some when they come in.

Guess I'll redo it then. Happiness is cutting pipe under 600w

Would it work if just looped it back at the end all way to where it comes off the wall. Or do I need even distribution around the loop

Click to expand...

Ya just put the T where the 90 is now,and the 90 where the T is and run more line back to the T.So a big loop.(manifold).
This way pressure is the same anywhere on the loop.