Dosing 70 ml soda ash daily to maintain dkh, loosing approx 1.0 dkh daily. Have had to dose vinegar 30ml x2 occasions secondary to elevated pH approaching 8.9 which works well and decreases back to 8.6. Has decreased phos by 50%, consider carbon dosing once weekly

W 5 gal Rodin for top off

In 5 gallon ro in ato dosing 1 gallon/day……dc alk doser

Given in 4 doses

In 5 gallons