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There should be text explained the pictures when you click on the pictures.  If not, I’ll fill it in in my next blog post.  I built this spray booth in about a full day, once the materials were assembled.  I’d built a couple more in earlier decades, so I had the basic concept down.  If you exclude the cost of the old wheel, I think it cost me a total of about $125.  The prior booth was even cheaper and lasted 16 years.

I chose to use a squirrel cage blower because it was free.  I take a piece of steel and clean the fins of glaze about every other kilnload, as it can build up and decrease the suction.  It takes about 5 minutes to do this.  I don’t put a filter in front of the fan as it decreases suction significantly.  If you chose to, you could run a waterfall baffle system through which the spray would pass, before it exhausted, but that would require more complicated construction and more expensive venting equipment.  I did not choose to use an in-line inducer fan because of the noise factor.

This booth really works well.  I generally spray across the pot, towards the exit fan, so that the booth exhausts quickly and efficiently.  When I did the math, I found that the air is theoretically exhanged completely every two seconds.  There is little if any blowback from the spray, so the operation does not seem overly hazardous to one’s respiratory health.

Any further questions or comments, feel free to leave on the blog, and I will answer them here as well.

Best,

Richard