[Mike55]

Hi there.

Just changed my HF5 membrane and can't remember which way round to replace it lol

One end has a built in white strip the other has a removable black rubber o ring.   Which end goes to flush and which goes to the feed?

Thanks, mike

[SB Cleaning]

On mine the white strip goes the flush end....I fitted one around 5 weeks ago

[Mike55]

Cheers.  Yes that's the way I've fitted it 

TDS coming out at 35 but hoping this will drop if I give it a good flush out for an hour or so