Note:  The slots are technically added by a non-visible method that indicates whether the water user is standalone, lumped, or sequential. Therefore, the Methods tab on the Open Object dialog does not show the slots, but the Slots tab does.

Note:  It is an error if a Return Flow Routing method other than “None” is selected and salinity is modeled. In other words, you cannot route return flows and model salinity on the same water user.