I've noticed that ducts relatively quickly lose pressure even over "short" distances. I know this is mostly due to Factorio's fluid system and the fact that I'm basically producing just about exactly as much fluid as is consumed.

Still to get the pressure I need at the end points I have to set up "pumping stations" every now and then. Just an outlet connected to an inlet to keep the pressure up.
(See https://i.imgur.com/omQYBkz.png for example.)
It wold be nice if you could include something like that as a single entity, maybe using a bit less power than the 360kw I'm spending now to basically work around an engine limitation.

I will think about it

you need a big pump to keep pressure constant i can not transport liquid long distance

Well, my NPP needs a lot of water constantly, maybe we really need a pumping station for confort and compactation of designs in megabases

you should try Explosive Excavation to create water wells where needed instead of pumping water all around the map.

you should try Explosive Excavation to create water wells where needed instead of pumping water all around the map.

well this might be more practical but i like to build an whole realistic high tech industry with a huge power plant...
thats why i like to use so much realistic mods

what is realistic about it?

well...its all about building smooth and organized industries...at least
until i start bulding belts at a rate that it turns into a mess