Good video. Though silent gameplay is a bit weird and would definitely improve with voice over or live commentary.
Having several off shore pumps to the boiler through regular pipes is a mistake though. You need storage tanks and pumps exclusively to transport a high throughput of liquids, no pipes or underneathies. Your boiler is getting 1.5kps even when it is close to the off shore pumps which is barely more than 1 off shore pump. And then you moved it away from shore with more pipes. But you don't really need more water throughput at this stage of the game so it doesn't really hurt you beyond the time investment of overbuilding without results. But as long as you are bottlenecked at 1.5kps of water you can use underneathies and pipes and no pumps for looong distances without really having any more drops in throughput.
It's cool that you managed cube routing without combinators. You have combinators available and it would be much more efficient with combinators, buffering and local recharging. And it would be easier for me to understand, it's quite tricky to see that the cube distribution is actually 1/5th and 5/6ths and the approach doesn't scale for later setups since there are no fixed ratios when you manually steal some outputs for machines etc. And using combinators means you don't need to know the ratios either. But it was quick to set up and I guess that was the point, I'm not complaining or saying it is wrong I'm just writing down my thoughts.
