Glossary



  • Secondary circuitĀ 

    An assembly of water fittings in which water circulates in supply pipes or distributing pipes of a hot water storage system. Interpretation given in Schedule 2: of the Water Supply (Water Fittings) Regulations and Scottish Water Byelaws read more

  • Secondary system

    An assembly of water fittings comprising the cold feed pipe, any hot water storage vessel, water heater and pipework from which hot water is conveyed to all points of draw-off. Interpretation given in Schedule 2: of the Water Supply (Water read more

  • Servicing Valve

    A valve for shutting off for the purpose of maintenance or service the flow of water in a pipe connected to a water fitting. Interpretation given in Schedule 2: of the Water Supply (Water Fittings) Regulations and Scottish Water Byelaws read more

  • Spillover level

    The level at which the fluid in a receptacle will first spill over the top edge of a receptacle if the inflow of water exceeds the outflow through any outlet and any overflow pipe. Interpretation given in Regulators’ Backflow read more

  • Stopvalve

    A valve, other than a servicing valve, used for shutting off the flow of water in a pipe. Interpretation given in Schedule 2: of the Water Supply (Water Fittings) Regulations and Scottish Water Byelaws read more

  • Storage cistern

    A cistern for storing water for subsequent use, not being a flushing cistern. Interpretation given in Schedule 2: of the Water Supply (Water Fittings) Regulations and Scottish Water Byelaws read more

  • Supply pipe

    So much of any service pipe as is not vested in the water undertaker for illustration purposes only Interpretation given in Part 1: Preliminary of the Water Supply read more