I may be wrong but i think the belfast use to have 4x 60 gall watermeth tanks.
Mounted 2 between engines1/2 &2 between engines3/4 near the rear spar.Remember filling up the tanks early eighties in heavylift days?
Connection underside of wing not very user friendly.
CL44 airstart under flight deck floor hell of a rackect on off load of air on start up.