[Dave Willis]

How often do you flush your RO's and for how long?

[Window Washers]

How often do you flush your RO's and for how long?

every time i fill about 15/20 mins , why do you ask Dave ?

[Joe Martin]

Our static has two 40/40 Ro's units a carbon and a softener, flush twice a week for about 15 minutes.

[steven ainger]

How often do you flush your RO's and for how long?

every time i fill about 15/20 mins , why do you ask Dave ?

+1

[Dave Willis]

How often do you flush your RO's and for how long?

every time i fill about 15/20 mins , why do you ask Dave ?

Because since I moved and got put on a meter I don't tend to flush that often, hence why possibly, my last set of membranes lasted only four months. I am going to flush for an hour every week now. Just curious to know what everyone else does.

[Alex Gardiner]

I process water in a soft water area (Cornwall - 95ppm) so I do not have to worry quite as much as some WC's. I like to flush the membrane for about 5 minutes before each tank fill (2500 litres). About once a month (when I remember!) I then also flush for about 30 minutes.

I have had my current HF4 membrane for about 2.5 years and it is still producing water at about 002ppm - input pressure of about 100psi.

[Dave Willis]

Blimey 

My tds is around the 300 mark. It has been suggested that my 450gpd system may have been supplied with the wrong restrictor too. I used to get two and a half years out of my membranes.

[Alex Gardiner]

Blimey 

My tds is around the 300 mark. It has been suggested that my 450gpd system may have been supplied with the wrong restrictor too. I used to get two and a half years out of my membranes.

Which system did you have previously? A 300gpd or 450 gpd system?

[Window Washers]

I process water in a soft water area (Cornwall - 95ppm) so I do not have to worry quite as much as some WC's. I like to flush the membrane for about 5 minutes before each tank fill (2500 litres). About once a month (when I remember!) I then also flush for about 30 minutes.

I have had my current HF4 membrane for about 2.5 years and it is still producing water at about 002ppm - input pressure of about 100psi.

that last part makes me green with envy my water is very hard but to be fair my membrane has lasted years flushing as I do
Dave I would be interested on the figures of what your doing
Cost over saving will be interesting.
I don't use a water softener for his reason against what some suppliers say ( not you Alex )

[R.C Property]

Blimey 

My tds is around the 300 mark. It has been suggested that my 450gpd system may have been supplied with the wrong restrictor too. I used to get two and a half years out of my membranes.

Wish i had 300ppm, our water is 450ppm to start with, flush my ro system (before resin) eachbday for 30 minutes. My membranes been in for over 2 years now, water out of them are coming out at 012ppm.

I'm on water meter too, don't worry about the cost of being on one there is nothing in it really.

[Window Washers]

Dave any chance you could put a meter on your waste to test this to see if there really is a saving or a cost ?

[Dave Willis]

Blimey 

My tds is around the 300 mark. It has been suggested that my 450gpd system may have been supplied with the wrong restrictor too. I used to get two and a half years out of my membranes.

Which system did you have previously? A 300gpd or 450 gpd system?

300gpd

[wightsurf]

I dont flush a great deal to be honest.
In fact i have not flushed for over2 weeks now.Best check tomorrow.And
when i do flush its only for a few minutes.

[Mist A Bit]

i flush with pure water from my system while i drive home and then its ready to produce when i arrive

[Alex Gardiner]

Blimey 

My tds is around the 300 mark. It has been suggested that my 450gpd system may have been supplied with the wrong restrictor too. I used to get two and a half years out of my membranes.

Which system did you have previously? A 300gpd or 450 gpd system?

300gpd

This will be why,  in a hard water area, you are not getting as long from the membranes. By squeezing 150gpd from each membrane instead of the original 100gpd the material is more densely packed and in hard water areas this will lead to membrane clogging and fouling much more quickly than on the original 100gpd membranes. After a while even flushing will not remove this fouling and leads to a noticeable performance difference.

[Dave Willis]

Interesting, wish I'd known that before 
The supplier obviously didn't think it important to tell their customers this.

[R.C Property]

Interesting, wish I'd known that before 
The supplier obviously didn't think it important to tell their customers this.

Some don't just see it as a sale!

[Moderator David@stives]

I never flush

[R.C Property]

I never flush

Does the other half moan about that??? 

[Nick_Thompson]

Has anyone looked in to possible membrane cleaning procedures, citric acid for example?