This is rain ... like what falls from the sky in RL. Just rez the invisible prim and it will begin to rain. Hit CTRL+ALT+T at the same time on your keyboard to see the prim so you can move it or take it back into your inventory.
Additional instructions:
Here are some simple instructions for the rainmaker.
Type in chat:
/on to start the rain
/off to stop the rain
To remove the item
1. stop the rain by saying: /off,
2. select 'Highlight Transparent ' from the 'View' menu in your menubar. (Or press ctrl-alt-t.)
3. Look for a large (8m size) red sphere, this is the rainmaker
4. Delete it
Works well, sounds real, but it is the hardest thing to find to remove!
Love it! I can see how it would bog down computers that already struggle with SL, but it didn't cause me any issues.
rain didn't come with instructions on how to turn OFF. it rained indoors for quite a while before I could find the sphere to turn it OFF. other than that, I love the rain!!!!!!!
I almost went to a store to buy rain so gald i found this its much better:)