Up to 20 properties may have no water at some point as a sudden "leak" of water bubbled up on to the cycle lane on Tarawera Rd between Lynmore Ave and Selwyn Rd.
A Rotorua Lakes Council media spokeswoman said it was unclear if the water was from a burst water main but it did not appear to be.
The InfraCore was said to arrive at the site at 12.30pm after the council was contacted at 12.10pm.
A reporter at the scene said the road appeared to be damaged.
The affected part of the road would need to be dug up to find out the extent of the problem.