[herbiefatboy]

if you have a 300gpd on roughly 24/7 how long will the membranes last before they need a change tds before ro is 415 any help would be great.

[pingu]

Couple of years...I would have thought...as long as you protect those membranes correctly i.e temps, filter changes and flushing.

Dave...

[herbiefatboy]

thanks dave

[herbiefatboy]

could that be why my TDS is high when i first turn the R.O on thanks again

[easycleaner]

Dave is right, change the pre filters every 3 months and flush the system. With tds that high you might want to fit a water softner.
Mart.

[mark dew]

could that be why my TDS is high when i first turn the R.O on thanks again

It's normal for it to be high when 1st turned on. What is the tds of the water out the ro after a few minutes?
I run mine for a few minutes before i connect it to my di vessel. The tds comes down considerably from when it 1st starts.

[CLEANGLASSUK]

Using a water softener will pre-long the life of your RO Membrane

[herbiefatboy]

how much and who sells water softners thanks again for help

[Window Washers]

how much and who sells water softners thanks again for help

www.purefreedom.co.uk say Window Washers sent you