Hi everyone.
Im experimenting with water casting sterling silver. Im trying to get the bell shape but 20 - 30 pours have resulted in only one like this and I cant seem to replicate it.
Questions I have are

1.How to you know when the silver is at the correct temperature to pour?

2.Is it better to have more than you need in the crucible in the knowledge that a lot of the results will be unusable?

3.Pour into hot water or cold?

4.How deep shoudl the water be?

5.What difference does varying the hight above the water make?

6. I have a few pieces that I think were melted over and over again, and have a dark finish a bit like they have been oxidised. Pickle doesnt remove it. Im tumbling it now to see if that will bring the silver back to life. Any thoughts on what is happening?

Thank you
Sofaboy