Design flow

Definition

The gallons a day a park's septic system is permitted for, set by a table.

Why It Matters

Full hookup is the premium product and this is what the upgrade actually costs. A state table sets the design flow by site type and not by measured use. The numbers do the arithmetic for you: in Minnesota a campsite with a central bathhouse is fifty gallons a day and one with a sewer hookup is a hundred. So converting a dry site to full hookup doubles its design flow, and enough conversions move the whole park up a permit tier. Past five thousand gallons a day it is a midsized system; past ten thousand on one dispersal area it needs a state permit. Two more things a buyer should know. The flow is redetermined for an expansion before the permit issues. And the permit names a person, so it does not follow the land: the buyer asks for a modification and the seller has to consent to it.