Some pottery kiln places will only fire their own clay, which must be to spec.
And safety glasses to handle warm clay that's been heated at all in a kiln or a fire.
Looked at making unglazed terracotta ollas for irrigation and couldn't decide whether a 1/4" silicone microsprinkler tubing port should go through the lid or the side.
Terracotta filters water, so presumably ollas would need to be recycled eventually due to the brawndo in the tap water and rainwater.
/? how to filter water with a terracotta pot
It looks like only the Nat Geo pottery wheel has a spot to attach a wooden guide to turn against; the commercial pottery wheels don't have a place to attach attachments that are needed for pottery.
Also neat primitive pottery skills: Primitive Skills, Primitive Technology
westurner|1 year ago
And safety glasses to handle warm clay that's been heated at all in a kiln or a fire.
Looked at making unglazed terracotta ollas for irrigation and couldn't decide whether a 1/4" silicone microsprinkler tubing port should go through the lid or the side.
Terracotta filters water, so presumably ollas would need to be recycled eventually due to the brawndo in the tap water and rainwater.
/? how to filter water with a terracotta pot
It looks like only the Nat Geo pottery wheel has a spot to attach a wooden guide to turn against; the commercial pottery wheels don't have a place to attach attachments that are needed for pottery.
Also neat primitive pottery skills: Primitive Skills, Primitive Technology
"Primitive Skills: Piston Bellows (Fuigo)" https://youtube.com/watch?v=CHdmlnAA010&
"Primitive Technology: Water Bellows smelt" https://youtube.com/watch?v=UdjVnGoNvU4&
Megalithic Geopolymers require water glass FWIU
/? how to make concrete planters
But rectangularly-formed concrete doesn't filter water like unglazed terracotta