The Model Data > Model Tools > Run Data Checks menu has the following options:
•Hydraulic: A comprehensive hydraulic check can be run on the model before conducting an analysis to ensure all required data is in place. This tool can also be accessed by the 
Run Hydraulic Checks toolbar button. If the data is fine, the following message will appear in the Command Panel: "All hydraulic checks passed."
•Run User Checks: This option opens the Checking of model(s) box in which the user can select specific row(s) from a table indicating which checks should be run on the model (see screen-shot below). The outcome of a check is indicated in the Success field of this table (e.g. "No", see screen-shot below) as well as in the Command Panel. The following is an example of a check run on the Asset Management (AM) Replacement Value data, checking for invalid blank (null) values:
