R O Water and Auto top off

[Dougie Pumpkin]

Hi,

I am new to all this, so a quick question. When I fill my auto top off container up, should i be amending the KH to the recommended level before it is added to the sump ?

 

[redfishbluefish]

NO! The only thing you lose during evaporation is pure water. So your auto-top-off should be pure RO/DI water....that's it!

 

[Dougie Pumpkin]

NO! The only thing you lose during evaporation is pure water. So your auto-top-off should be pure RO/DI water....that's it!

Thank you do much