Why are my bottles watery?

The primary reason for “watery” bottles is that the wrong setting was chosen, the formula is below the “min” line in the powder container or the funnel and the underside of the powder container are not being cleaned properly after every 4th bottle.  When any of these things happen, the machine won’t dispense the proper amount of powder, especially if it isn’t cleaned properly which can restrict the size of the hole where the formula dispenses into the mixing funnel. If you want to confirm your Formula Pro Advanced is working accurately, you can conduct the Official Formula Pro Advanced Accuracy Test at home by watching the short video above that explains how.