N. Thornton wrote:

not seen anything like that, the ROs I've seen are fired clay, and you
clean them out in a furnace. Deinitely wouldnt heat organics red,
unless you want to convert them to carbon filters

Odd. What application was that in?

The only RO membranes I've come across have been Cellulose Triacetate
(older technolgy, cheap, limited life) and Thin Film Composite (newer
material, used to be more expensive but price dropping, long life).

--
Grunff