Lou Frame, who works at Stithians School, said the village had flooded “for years and years”.
“The sewage system is antiquated and needs replacing, but South West Water puts a sticky plaster on it every time something happens.”
She said pupils had spent a week laying wood chip and smartening up the Wild Tribe play area in the school fields, which had been “completely wrecked” by the sewage flooding.
“Children are standing in raw sewage every morning waiting for the bus, it’s disgusting,” she added.
Parish councillor Blease also said that previously, “South West Water has come up with sticking plaster solutions”.
“Flood water is mixing with raw sewage and making it very unpleasant,” he added.