Writes the Sentinel, Second-placed Grove, fresh from hitting Spalding for six last weekend, took 17 minutes to get off the mark when a low cross by Ricky Bridge was side-footed home at the near post by Dave Walker.
Kidsgrove then hit two goals in as many minutes to take a 3-0 lead into half-time.
Matt Haddrell (23 mins) scored with an unstoppable header from a Tim Sanders corner, and then Walker placed a shot under the keeper following a through-ball from inside his own half by Craig Dove.
Romulus began to offer more of a threat, but fell further behind on the hour when Aiden Matranga played the ball over a defender for Walker to find the net and seal his hat-trick. Romulus pulled a goal back with a long-range shot, but Haddrell (84) had the final say from the penalty spot after substitute Karl Charlton had been tripped.