Reverse osmosis (R/O) desalination units supplement rainwater harvesting on Funafuti. The 65 m3 desalination plant operates at a real production level of around 40 m3 per day. R/O water is only intended to be produced when storage falls below 30%, however demand to replenish household storage supplies with tanker-delivered water means that the R/O desalination units are continually operating. Water is delivered at a cost of A$3.50 per m3. Cost of production and delivery has been estimated at A$6 per m3, with the difference subsidised by the government. COUNT 5
QSN1 What type of desalination is used on Funafuti? ANS1 Reverse osmosis QSN2 How much water does the Funafuti plant produce? ANS2 40 m3 per day QSN3 At what storage  point is R/O water production meant to be used? ANS3 below 30% QSN4 What organization subsidizes the cost of water desalination? ANS4 government QSN5 What is the cost of R/O produced water? ANS5 A$3.50 per m3