The substantial number of binary central stars of planetary nebulae ( CSPNe ) now known ( \sim 50 ) has revealed a strong connection between binarity and some morphological features including jets and low-ionisation structures . However , some morphological features and asymmetries might be too complex or subtle to ascribe to binary interactions alone . In these cases a tertiary component , i.e . a triple nucleus , could be the missing ingredient required to produce these features . The only proven triple , NGC 246 , is alone insufficient to investigate the shaping role of triple nuclei , but one straight-forward way to identify more triples is to search for binaries in nuclei with known visual companions . Here we demonstrate this approach with the SALT HRS discovery of a 4.81 d orbital period in the CSPN of Sp 3 which has a visual companion 0.31 ” away . The spectroscopic distance of the visual companion is in agreement with distance estimates to the nebula , the GAIA DR2 parallax of the central star , and the gravity distance of the central star . This supports a physical association between the visual companion and the inner 4.81 d binary , making the nucleus of Sp 3 a likely triple . We determine T _ { \mathrm { eff } } = 68 ^ { +12 } _ { -6 } kK , \log g = 4.6 \pm 0.2 cm s ^ { -2 } and v _ { \mathrm { rot } } = 80 \pm 20 km s ^ { -1 } for the primary from NLTE model atmosphere analysis . The peculiar nebula presents an apparent bipolar morphology , jets and an unexpected ‘ extreme ’ oxygen abundance discrepancy factor ( adf ) of 24.6 ^ { +4.1 } _ { -3.4 } . The adf is inconsistent with the purported trend for longer orbital period post-CE PNe to exhibit normal adfs , further highlighting the dominant influence of selection effects in post-CE PNe . Lastly , the Type-I nebular abundances of Sp 3 , whose origin is often attributed to more massive progenitors , are incongruous with the likely Galactic Thick Disk membership of Sp 3 , possibly suggesting that rotation and binarity may play an important role in influencing the AGB nucleosynthesis of PNe .