I am ready to start on my dome and i have 2 questions. first when you mix the sand, fire clay and water to lay the floor what is the ratio of sand to clay and what grit sand should be used. next my fire clay is called mortar clay and the dealers said to mix this 3 parts mortar to 1 part clay. does this sound ok. (as mortar is sand lime and cement correct) or should i buy the sand ,cement and lime and mix in the 1-3-1-1 ratio. thanks for all the help. This forum is great.
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