the lava should melt-regardless of the solution
do you have the correct wattage bulb in it?
Is the coil on the bottom?
I believe the China formula is 70% distilled water/30% propelene glycol (fog juice)
Check the lava library tab
check this thread out
The new lava lites ARE china made
if they are new ,.. yes
read the threads about formula
also at the bottom of home page there are links to important data