T1KARMANN
Aquarium Advice FINatic
- Joined
- Dec 13, 2012
- Messages
- 629
I'm confused
I had 2 125gpd membraine running back to back which run 24-7 after 1 year of constant use the tds was 14ppm
I changed them as I think 1 year was a long time running all day
I swapped them for 150gpd units and the tds was 34 so I swapped them again for 100gpd units and it's now down to 22ppm still not as good as the old units
My psi is 65
My feed water is 342ppm
I don't use di as it gets killed fast even at 14ppm running 24-7
Is this normal for new membraine to have a higher tds for the first few days
Sent from my iPhone using Aquarium Advice
I had 2 125gpd membraine running back to back which run 24-7 after 1 year of constant use the tds was 14ppm
I changed them as I think 1 year was a long time running all day
I swapped them for 150gpd units and the tds was 34 so I swapped them again for 100gpd units and it's now down to 22ppm still not as good as the old units
My psi is 65
My feed water is 342ppm
I don't use di as it gets killed fast even at 14ppm running 24-7
Is this normal for new membraine to have a higher tds for the first few days
Sent from my iPhone using Aquarium Advice