How To: Fix a Fog Leak

When it comes to creating fog for a basic yard haunt, the standard weapon of choice is the “Fog Machine” created by Gemmy.  Although the packaging may differ from store to store, this workhorse is known by its basic boxy design and it’s ability to create a large amount of fog for a very reasonable price. Each year, however, there is one running complaint about the Gemmy Fog Machine: the darn thing drips Fog Juice over the place. For years haunters have had to plan their layouts around this prop’s leaking.  This year, we are pleased to bring you the news that there is a solution.

WARNING: To fix the problem, you must remove the top cover of the machine and tinker with the insides. This totally voids the manufacturer warranty, and, if you don’t know what you’re doing, could result in someone getting hurt. So, if you decide to undertake these modifications, please note that you are doing so at your own risk.

OK, now that I’ve scared off the people who probably shouldn’t be playing with the guts of the machine anyway, let’s get down to business. The first step is to remove the cover.  As you may have noticed, the screws holding the cover on can’t be removed with your standard flat or phillips head screwdriver.  These are torx screws and you’ll need a torx bit to remove them.  Thankfully a set of torx bits in assorted sizes can be picked up at most auto parts stores.

Torx Bit and Screw

Now that you’ve got the cover off, locate the Fog Juice reservoir and the plastic tube leading out of it.  The ends of this tube, which are held on with tiny zip ties, are the points at which the machine leaks.  Remove the tube.  If you have an OLD style machine (without the remote control), be careful with the fluid level sensor wires on the side of the reservoir.  Odds are that you’ll be able to slide the tube off of its connections without much effort.  There may be some silicone residue that should be removed.

Inside "Old" Fog Machine

At this point, take a look at your tube.  There should be a small mesh filter jammed inside.  This filter protects the pump from any foreign sediment that may end up in the Fog Juice.  As a result, it also slows down the flow of Fog Juice into the heater.  For our machine, we chose to remove the filter to increase our output of fog.  We’ve got a large graveyard, and we need every bit of fog we can get.

Fog Machine Filter

Reattaching the tube is as simple as sliding it back into place and fastening it with a few zip ties.  For best results, put two zip ties on each end.  For older style machines, it may only be possible to get one tie on the reservoir end.  You want to get the zip ties as tight as possible, so, if you have a zip tie gun, use it.  Then, fill the reservoir up with Fog Juice and check for leaks.

New Zip Ties in Fog Machine

Next, put the top back on and replace all of the screws.  Then, just plug in the machine and fire it up.  In just a few minutes, you should be standing in the middle of a cloud of fog, totally leak free.

Cloud of Fog


3 thoughts on “How To: Fix a Fog Leak

  1. Anonymous

    how do you get the cover off?

  2. Anonymous

    the infrared receiver and switch wires are connected to the inside so I can”t get the cover off after taking out the screws

  3. Anonymous

    Never mind. Fixed it. Thanks for you quick response (sarcasm).
    Seriously though you guys have some cool stuff. Keep it up.

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