- Joined
- Aug 21, 2015
- Messages
- 2,065
- Reaction score
- 320
i have a bulkreefsupply 7 stage rodi unit changed out my embranes and all carbon sediment and resing so i decided to test the water and it reads 0.01 but my tds shows 0 is this normal and do i need to worry my main display is 200 gallons