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     There are some  brilliant minds on this forum.  I have never figured out a way to really know how wet or dry the wadding is in my various smoke units.  The result is scorched wadding and poor smoke if you don't add enough fluid,  or smoke unit overflow if you add too much.  I know I am not alone with this problem.  Frequently, when I disassemble smoke units I am surprised at what I see.  Here are some ideas:  A dip stick of some sort that would respond when it touches fluid dampened wadding.  Or maybe changes color like ph test strips used in swimming pools.  Or maybe some kind of led with a magnifier to insert in the stack to visualize the wadding.    I know some medical instruments have this kind of capability.  I am open to ideas.  Here would be a great product for someone.  Phil

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I've developed a "rule of thumb" for smoke refills of the typical fan driven smoke units.  I add about 1/3 of a JT Megasteam dropper when the smoke volume starts to fall off noticeably.

 

I'd like to come up with a smoke unit reservoir that would allow longer run times before refilling.

 

Note that TAS used to have a thermistor in some of their smoke units to shutdown when it ran out of fluid, but they still burned the wick.

 

The TAS smoke units that are found in Atlas O models have a low fluid cut-out, a Thermistor, I believe.  A safety feature to inhibit smoke resistor burnout.

It's the blue thing. If the thermistor cuts the power to the black smoke resistor pictured it could also trip a indication light. Low fluid.  But at the same time the smoke will stop anyway.   

 

Last edited by Mike CT

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