1) Big conduits 2) Big pipes 3) Bounding and Spanish 4) Bounding and water 5) Certain conduits 6) Combined-flow pipes 7) Conduits 8) Electricity power source 9) Farm in Scotland 10) Gas conduits 11) Gas lines 12) Gas pipes 13) Large pipes 14) Large water conduits 15) Large water pipes 16) Major conduits 1) Pipes 
[Scotland] The word Mains (Mànas) in Scotland normally refers to the main buildings of a farm. This may include the farmhouse, farm buildings such as a byre,dairy, and workers` cottages. It is pseudo-plural, actually being a Lowland Scots corruption of the French demesne, and so is never used in the form `Main` (except occasionally in the ...
• (n.) The farm attached to a mansion house.
The speakers facing the audience along with the system of amps equalizers and effects attached to them.
the home or main farm on a larger estate. 
Mains (mānz) noun [ Scot. See Manse .] The farm attached to a mansion house. [ Scot.]