The phrase "are being refilled" is correct and usable in written English.
It can be used when describing an ongoing action where something is currently in the process of being filled again.
Example: "The water bottles are being refilled for the event attendees."
Alternatives: "are being replenished" or "are in the process of being filled."
He said the accident happened as the water tanks were being refilled after having been drained for maintenance.
And in a picture in which a bird feeder is being refilled, the subject is Dr. Greene, a professor at the University of Montana, not Mr. Streekstra.
The reservoir, which is being refilled after having been drained two years ago to facilitate repair work on the New Croton Aqueduct, is revered for its beauty when full, though many in the neighborhood disdain the fence that restricts access to it.
No one has a richer appreciation of the way the big wheel keeps on turning than a postmodernist, but some of the writers may have wondered, while the glasses were being refilled, what it had all been about.
He was sitting in the bar of the Bowery Hotel, in Manhattan, drinking white wine from a glass that was being refilled by a slim waitress in a black wrap dress.
Settled and silent for now, like a giant stinging insect that has briefly come to land, its long stick arms are folded back above its head while the belly of the tank on the trailer behind it, marked with a skull and crossbones warning, is being refilled with its next toxic load.
Hills's team excavated as much as it could before the reservoir was being refilled in early June to provide farmers with water to irrigate for summer sowing.
The tank was being refilled when one of the tubes, damaged during the repairs, imploded and started a chain reaction that destroyed almost all of the submerged tubes.
The tank had been emptied in August to replace 100 burned-out tubes and was being refilled on Monday when more than half of the 11,146 tubes suddenly shattered in an apparent chain reaction.
