The chairman of the Water and Sewerage Authority claims the introduction of the sewerage charge - the so-called toilet tax - has not been handled badly.
News of the charge, set at £50 this year and rising year-on-year thereafter, was met with dismay and anger by many.
A petition against it collected more than 6,300 signatures.
It was presented to Tynwald this week, but members still voted in favour of its introduction.
WASA Chairman John Houghton:
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