[mufcglen]

Hi lads I go away for 4 weeks and wondered could my 4040 membrane dry out in that time or will I be ok?
I’ve Heard they can get damaged or not be as efficient once they’ve dried out?

[Smudger]

It should be ok as when you shut down it will sit in water but 4 weeks is a long time so I’d be safe and pull it out of the housing and wrap in cling film

Darran

[p1w1]

Yes will dry out and implode  .. when I went away for 6 weeks (not prison  ) I took the membrane and filters out and put them in a black bin liner tied up and they were fine. On return just give it a good flush, i ended up just using new pre filters as there cheap to replace.

[mufcglen]

Thanks guys I may leave the waste tap closed to hold more water in the Ro as I usually fully open it when I’ve finished filling and it drains at least another litre or two usually

[herbiefatboy]

how long do membrane last on average how do you know when they have had it sorry to go off topic a bit .

[mufcglen]

I’d say when they start getting too high ppm readings its time to replace pal
I’ve had my axeon hf5 for nearly a year and half and its still producing pure down from 75-80ppm to 2-3ppm with a tap pressure of 40psi.
I think the worry is them drying out when not being used or freezing in the winter and damaging the membrane

[Dry Clean]

To stop RO shock dry RO membranes need to be run in when first used, just give it a long flush and then bring the pressure up slowly when you get back and you wont have any problems, years back when I was out on the sick mine went for about 8 months without being used (so well dry) and it didn't cause any damage.

[mufcglen]

Thanks pal, great advice
4 weeks is nothing then compared to your time off!
I’ll just flush it through for a good 5-10 mins then slowly close the tap off😉