Gary Jackson: Fire When Ready Pottery
A Chicago potter’s somewhat slanted view of clay & play
Categories: kiln firing, pottery, process, production, studio

Just like something out of “The Wizard Of Oz”…
a bucket of water takes down the Wicked Witch of the West!!!
Well, it didn’t take a bucket… and there wasn’t a witch…
but there was a lot of MELTING!!!

So when I was loading my bisque kiln, I was loading boards full of pieces into the kiln. Many of the boards had been stored in the kiln room for a couple weeks… to dry out… as well as to get them out of my small studio space! Some of them have been there for a couple days… some for a couple weeks.

To my surprise… when I took down a board of twelve mugs from the top shelf… and found that “something” had happened to a few of them. They looked weird, and it took some time for me to process what had occured.

Apparently, there was some sort of water dripping down onto them over time. That’s the best solution I’ve come up with. There’s a electrical pipe running along the ceiling about an inch from the corner. Which I think would lineup with the drip marks on the mugs. Yes… if you look closely… I believe this is “erosion” from repeated water drips falling on them!

It had to be happening for awhile… as you can also see drips on the wall! And the amount of “melting” is kinda crazy… I think this must have been going on for quite some time! And since it was on the top shelf and out of eye-sight… who knew?!

You can actually see where there’s an actual hole all the way RIGHT THRU the bottom of the mug!!!… drip… drip… drip… kinda like Chinese Water Torture during the War!!!

Luckily, the mugs can just be broken up and reclaimed again… IT’S JUST CLAY, right?! And I’ve learned a valuable lesson… no more greenware storage on the top shelf… at least not pushed all the way back… until we find out why water might be dripping from an electrical pipe?! Now THAT doesn’t sound good either, right?!

2 Comments

May 2nd, 2020

Condensation? Is the wall particularly cool to the touch, and chilling the metal conduit? Maddening.

May 2nd, 2020

Not that I know of. It’s in the top corner of the kiln room running perpendicular to the window… yet a good ten feet away! The wall that it butts up against is an interior wall with a “lobby” common area on the other side. I don’t see anything that would “cool it off” like an air conditioner or anything else?! It just seems strange?!!! But the fact that there are drip marks running down the wall tells me my “dripping-erosion-theory” is pretty iron-clad!!!

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