If you wish to create levels containing water, you must purchase the Pirates of the Caribbean Premium Level Kit, available from 22nd December ‘09 on the LittleBigStore and PlayStation®Store priced at £4.79 / €5.99 / US $5.99 / AUS $ 9.95 / NZD $11.50

However – even if you do not own this pack, you will still be able to play community levels containing water, just as you can play levels with the Paintinator in without owning the Metal Gear Solid Premium Level Kit.

I have unanswered questions about water!
If you have more detailed questions regarding the new water feature for LittleBigPlanet, we suggest heading over to the official forums, where hordes of Creator Curators will be happy to answer your questions!