"There are so many portable pools and spa pools these days that something needs to be done and if we don't do anything the drowning numbers will go up again."
Three toddlers drowned in home pools last year down from 11 in 2011.
A law change was extremely important in the Bay of Plenty where water was a large part of the lifestyle, he said.
"In the Bay of Plenty there are plenty of opportunities for recreation such as swimming, surfing, fishing and boating and with that there's a high risk of drowning."
Eight people drowned in Bay waters in 2012, down from 13 the previous year. Tauranga City Council said from January 1, 2000 to April 30, 2013, the council issued 911 consents for swimming and spa pools.
Rob Wickman, of the Tauranga City Council, said there was no register for complaints relating to swimming pools.
More than 50,000 households through New Zealand have pools.