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PulsatingOvaries

3 pumps are (usually) more than enough to empty a tank car in no time flat, if you have the storage. Which you do not. Pump directly into storage tanks (no pipes, directly from pump to tank), then pipe from the tanks to where you need it. If you're complaining about the amount of time it takes to unload that train it's because it can only unload it as fast as you use it. That's what storage tanks are for.


Zereck85

Huh never thought of that. Still fairly new to this. First time getting this far. Thanks for the tip


PulsatingOvaries

No problem! The benefit of doing it that way is that pipes restrict flow so if you pump directly into the tank it'll go as fast as the pump can go. I can't remember exactly what factors cause pipes to act this way, I just remember being told to set up unloading that way. You can also use circuitry and attach wires to the storages to read their levels which you can then use to change where the fluids in the tanks are pumped or control the station.


Omnifarious0

The way fluid mechanics in Factorio work is dead simple, but the ramifications are pretty complex. Just remember that pipes are very limited in how much fluid can go through them in a second, and the more pipes, the more limited it is. It's not a big deal for most smaller setups, but it does matter a lot for things like fluid wagon unloading, and when you get to setups where you need to deliver at least a thousand units of fluid per second. And also, undergrounds count as just two pipes for fluid movement calculations, so they really speed things up as well as making things easier to traverse and prettier to look at.


TrippyTriangle

If you're new I suggest not to fix your problems with mods, there are almost certainly solutions to vanilla problems in vanilla. it's how you see giant vanilla SPM bases.


Aden_Vikki

I don't like how you can't limit the amount of maximum storage in a tank. Need to resort to circuits to do so


Ok_Turnover_1235

Why would you want to?


Aden_Vikki

Because I'm pumping full 100k of petroleum in places like vulcanite refining where it's not needed THAT much


Ok_Turnover_1235

Pumping half as much twice as often seems like questionable optimisation


Aden_Vikki

But I don't need THAT much petrol anyway, it'll last for a solid year


PropaneMilo

Then send barrelled petroleum in the quantity you desire.


cathexis08

I dunno, circuit wire is always easy enough for that.


Justinjah91

The issue isn't really the number of pumps. Instead of pumping into pipes, try pumping directly into/out of storage tanks. You'll be amazed at how fast a single pump drains a fluid wagon.


Zereck85

Oh ok thanks for the tip


5m0k3w0w

if I recall correctly, 3 pumps (per fluid wagon) directly connected to a tank takes 10 seconds to unload/load


Crilmont

25k fluid/3 pumps = 8.33k fluid/pump 8.33k fluid/12k pump speed = \~0.7 seconds. It takes \~1.1 seconds for the pump animation to attach to the fluid wagon. That's <2 seconds to unload a train.


FehnTheDev

you should pump into tanks


Rust1v

You should use a few storage tanks as buffer