[Wrekin C S]

Hi

I checked my Water earlier and my TDS reading was 005ppm

So I changed the resin - still 005ppm

So I changed the filters - now 002ppm

When I do this it usually drops to 000ppm

Straight out of the tap 440ppm usually around this mark

Do you think my membranes are on there way out?

[A & J Owen Window Cleaning]

check the batteries in the tds they might be a bit flat this will give a false reading ad it a few days ago helped me