be warned, it may run a bit TL;DR.
we recently found a lava lamp i got my mother between '92 and '94, not old, but old enough that the lava had yellowed and the top had cracked, it does not have a bottle cap seal, just a wide-mouth bottle with an O-ring and screw top. fortunately it was right side up, so it didnt lose ALOT of fluid.
but it did lose enough
my problems are thus:
low fluid level *is it possible to homebrew fluid that will work with lava that came with it?*
the crack *gorilla glue? duct tape?*
the lava doesnt seem to be getting hot enough *the body of the lava rises, but not far enough to seperate *this observation was during the "oh well, the fluid will expand" phase of the other two problems. no matter how long i ran it it never got that heat
to be honest, i do not know alot about lava lamps from an enthusiast's standpoint, i dont know what kind of lamp, but i do have pics of the lamp, with an altoid box scale, and the crack in the lid.
please guys, help me save this lamp, and i will forever sing the ballad of oozing goo, the savior of the lava lamp
update: following lamphead's awesome advice, backfilled it, testing now.... the anxiety of letting it warm up is killing me XD
update to the update
it's been around 18 hours, still nothing from the lamp warming up, astrobaby suggested to add soap, so.... homebrew fluid recipes, does anyone know any?