Abstract: A method for interconnecting floor drains includes attaching a first elbow fitting to an existing floor drain through an existing floor. A second elbow fitting is attached to a new floor drain that is to extend through a new floor overlying the existing floor. An extension pipe extends between the spaced first and second elbow fittings to create a fluid pathway between the new floor drain and the existing floor drain.

Abstract: A spacer providing a substantially uniform space between adjacent tiles includes spacer legs extending radially from a common junction. The spacer legs, made from a porous material, are permanently adherable to a tile bonding material utilized to adhere the tiles to an underlying surface, and/or a grout material filling a gap between tiles. A process for making a tile spacer includes providing thinset material to which a liquid latex admix material is added. The materials are distributed evenly to a consistency of a damp fluffy sand-like mixture which is then placed into a mold of a desired shape and packed into the mold to bond the materials while still damp to form the tile spacer. The spacer is extracted from the mold and placed on a flat rigid sheet. The spacer is moist cured and dried at room temperature environment with 40-99% humidity.

Abstract: A spacer providing a substantially uniform space between adjacent tiles includes spacer legs extending radially from a common junction. The spacer legs, made from a porous material, are permanently adherable to a tile bonding material utilized to adhere the tiles to an underlying surface, and/or a grout material filling a gap between tiles. A process for making a tile spacer includes providing thinset material to which a liquid latex admix material is added. The materials are distributed evenly to a consistency of a damp fluffy sand-like mixture which is then placed into a mold of a desired shape and packed into the mold to bond the materials while still damp to form the tile spacer. The spacer is extracted from the mold and placed on a flat rigid sheet. The spacer is moist cured and dried at room temperature environment with 40-99% humidity.