Nine 20 foot shipping containers were supposed to be opened today for clearance by Customs.
The National Project manager Tom Anayabere said this will now take place on Tuesday due to rain in Lorengau.
The containers contain solar equipment and includes backup controls and batteries, plus the actual desalination plant equipment that will be installed in the project islands of Bipi, Mbuke, Whal, Nauna, Mal and Aua.
A delivery of the equipment is expected to be done on Thursday to Bipi island. Mbuke and Whal will receive their plants next week.