Ro water from woodmans

[Damarferg]

If you get your Ro water from woodmans is that ok or should I go to th saltwater stores

 

[tangs27]

It depends on what they use to filter the water and how often they change their filters. If you have a TDS meter and test kit you can test a batch to make sure it's clean.

 

[mrvincent]

Use cheap tds meter to see levels.... It should be <2ppm. Or just buy sea water at LFS.