In April regulator Ofwat started the biggest shake-up of the sector since privatisation.
Doing so by allowing trades, charities and public sector groups to purchase water from conglomerates other than their local supplier.
However, official believes released last month show that only 25,010 out of a possibility market of 2.7million have switched water suppliers.
Power and utilities consultant Utilitywise said deregulation is falling flat because not enough people cognizant of they can switch and prices are too complex.
This means people cannot thrive valid comparisons.
Chief executive Brendan Flattery said that even if Ofwat steps in immediately and does more to publicise and encourage scourge, it will still take “three to five years” before it grows commonplace.
Elsewhere, challenger power group Bulb has called on the Contest & Markets Authority (CMA) to block the merger of Big Six energy firms SSE and Npower.
Bulb co-founder Hayden Wood pronounced: “The CMA needs to protect competition and consumers.”