Pukehina and Maketu residents who are unsure about their water quality are advised to do a precautionary flush of their home systems.
Western Bay of Plenty District Council had been receiving and investigating reports of disparity in water quality in areas neighbouring Paengaroa and Pongakawa following Monday's elevated pH levels for some households.
Pukehina and Maketu areas were flushed yesterday afternoon to remove any pockets of higher pH water.
In a media release sent yesterday, the council said it had received 20 calls from people near Wilson Rd South and Arawa Rd who had reported reactions after drinking the water.
"A handful of residents reported skin reactions such as rashes and feeling burning sensations, while others reported having sore stomachs and puffy eyes or that the water felt slimy," the statement said.
On Tuesday, the council confirmed a high pH level in its water supply feeding about 300 homes in the Pongakawa and Paengaroa areas from Monday. Residents were advised not to drink or use the water.
The pH levels in the water supply were restored to recommended levels on Wednesday.
Council utilities manager Kelvin Hill said water with elevated pH levels had been flushed from council systems but there may still be some isolated pockets.
He said Maketu reservoir pH readings have remained within acceptable levels since Monday.
However Pukehina and Maketu areas were flushed on Wednesday afternoon to remove any pockets of higher pH water.
"We want to reiterate that if you are unsure about the water in your home system, or if you think it feels slimy, flushing or emptying your water cylinder by running water for ten minutes should solve the problem."
The reports follow an incident in March when a malfunction at a water plant resulted in a warning to Pukehina Beach residents not to drink or use water.
Council had received two complaints, including a report of a woman suffering a rash after taking a shower.
Toi Te Ora Public Health said high pH level means the water is more alkaline than it should be.
"The main concern about this is that it can cause skin irritation in some people."
Public can contact council with any issues on 0800 926 732.