COLD COMFORT: Ron Preston takes his three-year-old son Makaia to a portaloo in Avonside that has not been emptied or cleaned since it was put there.

It is Christchurch's forgotten portaloo.

Avonside resident Josh Smith is not happy that a portaloo delivered to his street a month ago has never been emptied or cleaned.

Smith's red-zone street is badly damaged and many homes have no sewerage.

"These portaloos are getting dropped off and forgotten about," he said.

"It is right outside my house and it is the only one in the street. It has been there for a month and no-one has cleaned it. It was disgusting to use."

Smith said he called the Christchurch City Council and Civil Defence to get the toilet cleaned, but got no answers.

"It is not very good. You would expect an answer or something."

Last week, he flagged down a private pumping truck and asked the crew to empty the portaloo.

A council spokeswoman said the portaloo would be emptied and cleaned as soon as possible.

"That is unusual. There are contractors that clean the portaloos on a daily basis," she said. "That is not right if that is the case. We will send someone out to clean it up."