Broomhead
... that it has cost about the same to maintain Broomhead and More Hall Reservoirs as it did to build them in the first place?
... that it has cost about the same to maintain <b id="mwAxw"><a href="./Broomhead_Reservoir" id="mwAx0" rel="mw:WikiLink" title="Broomhead Reservoir">Broomhead</a></b> and <a href="./More_Hall_Reservoir" id="mwAx4" rel="mw:WikiLink" title="More Hall Reservoir">More Hall Reservoirs</a> as it did to build them in the first place?