There have been two pipe breaks in Tauranga's water mains last month.
The first was on March 5 in one of the two trunk water mains that feed the Cambridge Rd reservoirs.
The reservoir level dropped to 45 per cent before the break was repaired the following day. There was another break on March 11 next to the first but a quicker response meant the impact was less.
The cause is thought to be pipe movement due to the dry conditions and failure of the pipe material, a portion of which has been sent for testing.