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Cdubee

disposing of glaze residue in home studio

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I am going to do some hand building at home.  I will apply underglaze to greenware

then search for somewhere to fire it.   How do I dispose of the water where I clean brushes and sponges 

after applying the underglazes? 

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I'm pouring off the clear part of glaze day washing water (underglazes and glazes), keeping the sludgy accumulation, which can be screened, adjusted for specific gravity and thixotropy, then re-used. It does take a while to settle out - no hurry, have several buckets around. Within a few days of completing a glazing session, it's all down to one bucket again - then a week or so later the rest of the clear can be poured off. My sludge comes out bluish brown, somewhat glossy, will use if for something...

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I also let the glaze settle and pour off the clear water I put the glaze in a large jar and let it dry out.   When the jar is full of dry clay residue I take it to our hazardous waste facility.   I live near a creek and  worry about something like lithium or barium getting into the water.    Denice

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On 4/30/2020 at 9:33 PM, Cdubee said:

... then search for somewhere to fire it. 

Might be a good idea to do this before you make things, so you can be sure you use materials that are acceptable to the kiln owner.  It would be a shame to make a potentially beautiful piece, then find that because of the clay or glaze used, or the firing temperature required, there's nobody near you willing to fire it.  

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