I was trying to replace the water in my mathmos astro lava lamp and had a lot of problems with it as you can see in the video. But in the end i solved those ...
Hi,nice flow on the tap water. Strange that distilled water appeared to have such a terrible effect on your lamp.
I guess distilled seems to be preferred because of it's known density & specific gravity 1.000 all around,tap
water though has different elements in it depending if you live in a city with municipal water or if you live in the
country on well water. Usually municipal water has several ingredients like chloramine fluoride small amounts
of dead organic matter a varied degree of hardness,and being that fine tuning a lamp to get a decent flow is
brought about by adding tiny amounts of different ingredients like sea salt for nice flow,soap for good bubble
separation and to prevent the wax from adhering to the globe: I haven't figured why the wax won't stick to the
globe, but very important that it sticks to the coil, soon, for now though more questions and brain storming.
Anyways back to the composition of the water and then the wax. And there's time also involved, wattage of
lamp size of globe, thickness of globe wall, minute irregularities in the globe wall thickness, exact composition
of globe wall, more lead in some small spot as apposed to another spot, completely dissolved silica particles
in spot to another spot. I'm almost certain thickness in one small area to an adjacent area on the globe's bottom
is bound to have a some effect on heat released on the wax that comes in contact with spot to spot. How does
that small heat difference effect the coil also, who knows, I just find this whole dilemma so interesting, striving
for the ideal action of one lamp to another lamp. It's like the alchemist from days past turning lead into gold.
Excellent job on the repair, and nice flow action. Really nice lava lamp and again I've learned something else,
considering the use of tap water for lamp refill would have never crossed my mind,thanks for the learned
experience. Finally the question of seeking the opinion from others on whether your lamp is good or so,so. How
does it make feel about it, what does it do for you. I think it's amazing you went from having a problem to good
working lamp with tap water on top of it all. I'm understanding more and more why many members have such
a large collection on lamp. No one lamp is exactly the same, such a huge choice. Best of luck on perfecting
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