Fluid throughput question

[worthy compass]

I am working on a 12lane MAM but having issues with fluid throughput.

RGB foundation:

From fluid mines, i am getting full 3x4 lanes input per RGB color.
I am using logic to put a color on an output lane. Because of limitations with fluid valve and bridges, i am using sets of 4 valves (1800) +bridges (1800)

I am seeing a steady 7200 throughput here.

(please ignore the CMYW part, i am testing with RGB only)

RGB - PAINT is connected with 6 bridges per color so max throughput of 7200.

PAINT foundation
The painting itself has 3 layers of 4 painters, so 3 x 4 x 450 = 5400. My expectation is that there is enough paint coming from the RGB foundation to support painting.

However my PAINT foundation is running out of paint.

I am zigzagging pipes between layers, are the vertical pipes directional ?

[mystic crest]

1 fluid miner of a (4 launchers, 1 pipe) + 1 fluid miner of b (4 launchers, 1 pipe) into 16 mixers = 2 pipes = 8 launchers = 32 painters = 8 full belts of painted shapes

does this help?

[worthy compass]

The way I calculate is: 4 painters = 1800. 1 launcher or 1 valve = 1800. 1 pipe = 7200 which can handle 4 groups of painters

[worthy compass]

I removed the fluid tanks and now it is working

[mystic crest]

ive never touched a fluid tank