A hollow fiber membrane made of two coextruded layers A and B, wherein layer B has a non-woven type structure having a mesh size of 0. The method includes providing at least one deep trench having sidewalls that extend to a common bottom wall in a surface of a substrate. The method further includes determining a pitch of the frame and calculating a codeword representing the pitch of the frame, wherein a first codeword value indicates an indefinite pitch. The slab protector sheet is preferably formed of a plastic material and includes an adhesive strip on its underside that removably and temporarily adheres the slab protector to the underlying concrete slab to resist dislodgement. A technician completes the tests by making appropriate measurements at the terminations of the cables without having to return to the patch panel until all measurements have been taken. A fluid deflector proximate the fluid director can receive fluid from the fluid deflector and for re-directing the fluid from the fluid director.