The striker found the back of the net for all his goals in the final 18 minutes as the Chilli Boys strengthened their position in the top eight.
The home team scored with their first effort on goal after Buyani Sali found Andile Mbenyane in space and he scored with a calm right-footed shot into the bottom corner.
Stars were restricted to mainly long range efforts because of Chippa’s resolute defending and Robert Ng’ambi almost scored a scorching goal that whistled just over the crossbar.
The visitors were inches away from an equaliser after Solomon Mathe headed over from a Tlou Segolela corner five minutes before the half hour mark.
In the 72nd minute the lively Sali bagged another assist as he found Manzini, who made no mistake in front of goal as he doubled the home team’s advantage when he slotted home a low right-footed effort.
Five minutes from time the game was put out of Stars’ reach by Manzini, as he grabbed his brace after Mbenyane registered an assist to add to his goal.
Cavin Johnson’s men managed to pull a goal back three minutes from time through Ng’ambi, who latched onto a Vuyo Mere pass and found the back of the net.
Manzini completed his hat trick in the 90th minute after he finished low into the bottom right corner of the net from a Xola Mlambo pass to round off the win.
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