hi
i recently purchased a second hand van mounted RO wfp system. i was just wondering if there's any maintenance i should be doing to it, apart from changing the resin when the ppm rises? i read on an advert somewhere of someone selling a wfp system that he "backwashes it with salt every week" or something like that, what is that and should i be doing it?
any advice appreciated
roly
i recently purchased a second hand van mounted RO wfp system. i was just wondering if there's any maintenance i should be doing to it, apart from changing the resin when the ppm rises? i read on an advert somewhere of someone selling a wfp system that he "backwashes it with salt every week" or something like that, what is that and should i be doing it?
any advice appreciated
roly