Quote from erictom333»
Okay. There will have to be 137 different types of water added (normal water + 16 primary colours + 120 secondary colours), or 138 if you count no water. Currently there are 2 different fluids that can occupy blocks; adding coloured water will increase this, and therefore the number of blocks, 69-fold.
Then there is the old adage: why add this? It would be pointless IMO.
How would this be pointless? Colored water has been suggested several times due to the lack of dyeable liquids.