The rampaging pack was always dangerous with the ball in hand and scored six of the tries, openside flanker Graeme Cashmore scoring two.
The top teams all won and retain their gap over the rest of the field.
Taieri leads the Gallaway Trophy with 52 points and is followed by Dunedin 45, Southern 42, Alhambra-Union 41, University A 28, Kaikorai 26, Green Island 22, Pirates 16, Zingari-Richmond 15, Harbour 14.
The Dunedin scrum regained its usual dominance when prop Kelsey Miller came on in the second spell to help his team to a hard fought 19-11 win over Kaikorai at Bishopscourt.
Inside back Ben Nowell displayed courage under fire and explosive pace on attack to become a major contributor in Taieri's 33-13 win over Pirates at Hancock Park.
Otago No 8 Paul Grant led by example with his strong driving play and scored a decisive try to give University A a narrow 17-16 win over Harbour at the University Oval.
ALHAMBRA-UNION..........................52
GREEN- ISLAND..................................24
Alhambra-Union 52 (Ben Pereira 3, Graeme Cashmore 2, Matt Dalley, Johnny Liaina, Shaun Crockford tries; Peter Breen 6 con), Green Island 24 (SofeleTuiganala, Tala Moli, Jackson Hemopo tries; Joe Bartlett 2con). Halftime: Alhambra-Union 28-7.
DUNEDIN......................................19
KAIKORAI.....................................11
Dunedin 19 (Liam Edwards try; Pera Gibbs 3 pen, Edwards con, pen), Kaikorai 11 (Bryce Morgan; Cam Rutherford 2 pen). Halftime: Dunedin 10-8.
SOUTHERN....................................40
ZINGARI-RICHMOND.....................10
Southern 40 (Hamish Buick, Apelu Alapati, Luke Herden, Tom Franklin tries; Ben Patston 2 con, 4 pen; Bryce Hosie 2 con), Zingari-Richmond 10 (Chris Bell, Ben Kent tries). Halftime: Southern 16-0.
TAIERI....................................33
PIRATES.................................13
Taieri 33 (Nick Roulston 2, Ben Nowell, Rhys Collins tries; Rhys Collins 2 pen; Andrew Reid 2 con, 1 pen), Pirates 13 (Ben Hanley try; Kieran Fowler 1 con, 2 pen). Halftime: Taieri 6-3.
UNIVERSITY A........................................17
HARBOUR.............................................16
University A 17 (Harry Corkill, Paul Grant tries; Stephen Fenemor 2 con, pen), Harbour 16 (Pete Mirrielees try; Ollie Cuthill con, 3 pen). Halftime: University A 10-6.
