[BJungNan]

What specifically about redwoods needs explaining?

Start with this: What size pump would you need to elevate 160 gallons of water 300 feet up?

[VadeRetro]

Start with this: What size pump would you need to elevate 160 gallons of water 300 feet up?

I imagine a redwood is bigger than said pump in all particulars. You've been presented with a nicely detailed explanation. Before demanding a "better" one, you might explain something about what was wrong with the old one.

If water getting to the top of a redwood is a mystery, water getting to the 35,000 foot level in the atmosphere is a mystery beyond comprehension.

[js1138]

Start with this: What size pump would you need to elevate 160 gallons of water 300 feet up?

Starting with the observed fact that the rewood's pump works, Id say that one long enough to reach the ground would sufice. Are you suggesting that God personally intervenes with a miracle each and every moment in the life of a redwood?

Just for information, vacuum pumps can't lift water more than thiry feet. So the word pump is irrelevant here, as it is in every large tree.