What is a Water Level Control Structure?

A water level control structure is a box with slats that can be raised or lowered to control the level of water in a pond, lake, wildlife habitat or farm field.

What is an Inline Water Level Controller?

An inline water level controller is a box with pipes connected to the inlet and outlet sides. “Stoplogs” slide in tracks in the inside of the box to raise and lower the water level.

What is a Flashboard Riser?

A flashboard riser is a box with a pipe connected to the outlet side and “flashboards” facing the water. The flashboards slide in tracks and can be moved to set the water level. Flashboard risers are called “Single-Sided” water level control structures because the box is open on the side facing the water.

Are Stoplogs and Flashboards the same thing?

Yes, both terms describe slats that are used in water level control structures to set the water level. “Stoplog” is the name when used in an inline controller. “Flashboard” is the name when used in a single-sided structure. Flashboards and stoplogs can be made made from boards, lumber, plastic and other materials.

Why do you make both steel and aluminum inline structures?

Our DrainBox aluminum structures are very rugged to withstand difficult conditions during installation. The aluminum units are lighter weight and more corrosion resistant. For example, a 10-foot aluminum structure for 12-inch pipe weighs 180 pounds and can be placed and manipulated by two people. But, aluminum is expensive and larger aluminum structures tend to be costly. Steel structures less expensive but larger and much heavier. In comparison, a 10-foot steel structure for 12-inch pipe weighs 580 pounds and must be place with an excavator or crane.

Why don’t you make aluminum flashboard risers?

Flashboard risers are typically chosen for their lower cost. We can make any of our structures in aluminum or even stainless steel if there is a need to justify the cost.