I'm trying to get a refill for my Illuminess Tower lava lamp or can someone tell me how to re-colour the 'water'.
The liquid was green but now is cyrstal clear.....how can I colour the water/liquid? What can I use to safely colour the 'water' back to green ideally or failing that any other colour?
I understand what you say about the cap being pushed off when the lamp is hot. But if I put the lid on when the lamp is hot then when it gets hot again the pressure will be roughly the same. If anything a slight vacuum may happen to help seal the cap when it cools? ? ?