This section is from the book "Cyclopedia Of Architecture, Carpentry, And Building", by James C. et al. Also available from Amazon: Cyclopedia Of Architecture, Carpentry And Building.
Brass or copper pipe with screwed fittings should always be used for making the connections between the boiler and water back. Where unions are used they should have ground joints without packing. Lead pipe is too soft to stand the high temperature to which these pipes are sometimes subjected.
PORCELAIN ENAMELED PANDORA DESIGN DOUBLE SECTIONAL LABORATORY.
Standard Sanitary Mfg. Co.