In vintrace, there are two different ways that the addition of water to a wine can be tracked in the system. The method you choose depends on how you would like this to show up in your compositions.
Treating water as an additive
vintrace allows you to set up additions so that the batch volume is automatically increased. For vintrace users in the US this will also be accounted for on your TTB reports.
Head into Winery Setup > Production > Additive.
Open your Water additive; check the Increase wine volume check box and select a Vol change reason. For US customers please select TTB – Water addition.
You can then make the water addition using an addition operation which will allow you to enter in the final volume in your vessel.
If the auto-increase is NOT set up in the additive and you want to increase wine volume, show the gain in the Water addition section of the TTB report and include the water in the composition, check the Increase wine volume and use the drop down to select the Vol Change Reason you want.
Transferring/blending water from a virtual tank
In this method you can add Water as a variety and then perform a bulk intake of water to a virtual tank. This way you can perform a regular transfer from the virtual water tank to any wine that requires a water addition.
This method will affect the composition as the Water variety will show up.
Since Water is kept undeclared, you will want to do the transfer prior to declaring the wine into which it is being added - both components of a blend must be in the same tax state.