The tin shed houses a sunken, concrete sheep dip that was fed from water diverted from the Nant Methan via a small sluice or water control NPRN 504574. The sheep dip appears to be no longer used although the building is intact. According to Erwyd Howells in his 2005 book Good Men and True, page 10, the Birmingham Corporation built several communal dipping places in 1915 and this is thought to be the Blaenmethan one.
