Rain collector and buildings that supposedly can use water

[Mixu]

I don't understand how rain water is supposed to work. I build rain water collector and fill it up. Then I have several buildings that say "can use X water", but I never see my full storage of rainwater drop. do I need to build these building adjacent to each other or something?

[DraZguL]

When you select a building you have a tab (the most right one) about the rainwater. You have to connect with pipes and then you have a menu where you can use the water when clicking (increase speed production or/and some resolve for the people in the building)
But your building connected and using water will grow Blightrot. Have a blight post ready

[HydraSalza]

You need to use pipe to use the water. green water (Drizzle) usualy used in food building , yellow water (clearence) is usually used for trading/ pack material, blue water (storm) is usually for building material producer.
if you are new to the game rain is hard to use because you need to unlock some upgrade in smoldering city to get you a 7 - 14 pipe in each new game. using more water mean faster production and a chance to get double yield, you can also use water to boost resolve for the worder that in the building.
In harder difficulty using to much will corrupt your hearth and kill 3 of your people

[Mixu]

Where do I connect the building with pipes? Surely not the pipes on decorations category?

There's nothing pipe related on last tab of any building. I have pipes in storage.

[Mixu]

Nevermind. Googled a bit and apparently you need some upgrade on the Citadel. Kinda strange that you can build the rain collector before you do anything with it.

[DraZguL]

Originally posted by Mixu:

Where do I connect the building with pipes? Surely not the pipes on decorations category?

There's nothing pipe related on last tab of any building. I have pipes in storage.

Did you toke the upgrade in your smoldering city yet as hydrasalza said?

[Meta]

Originally posted by Mixu:

Nevermind. Googled a bit and apparently you need some upgrade on the Citadel. Kinda strange that you can build the rain collector before you do anything with it.

Yep, the building should be locked off imo until you buy the upgrade that lets you install rain engines.

[YOPG]

Originally posted by Mixu:

Nevermind. Googled a bit and apparently you need some upgrade on the Citadel. Kinda strange that you can build the rain collector before you do anything with it.

Rain collector is also used for glades events.

[Vegetable Vampire]

Originally posted by Mixu:

I don't understand how rain water is supposed to work. I build rain water collector and fill it up. Then I have several buildings that say "can use X water", but I never see my full storage of rainwater drop. do I need to build these building adjacent to each other or something?

Keep playing the game and upgrade stuff in the meta progression. At some point you get pipes and other stuff at which point you can use the rain water.

[Senrezu]

You can use rainwater to make blue metal bars that substitute for copper bars.