I've got a setup where I'm pumping oil to my base from quite far away. I originally set up a long pipe-line, which took a lot of effort/cactus, but the oil stopped flowing whenever I wasn't around. When I traveled back to my pump to look or the problem, I noticed that the oil didn't load for about 10 seconds whilst I was staring at it.
So then I used teleportation pipes. I have a dimensional anchor keeping the pump loaded, too, and yet I'm getting exactly the same problem. When I get back to my base, I find that the oil has stopped pumping. But when I'm waiting at the pump, it works fine. This means to get oil into my base I have to travel across the damn map twice a day. I thought these dimensional anchors were supposed to keep chunks loaded?