Elbow connection for a water drainage system

An elbow connection comprising:

• a first conduit having a first open end, wherein the first open end is configured to (i) connect to a first external component and (ii) establish fluid communication between the first conduit and the first external component;
• a second conduit having a second open end, wherein the second open end is configured to (i) connect to a second external component and (ii) establish fluid communication between the second conduit and the second external component;
• and
• a bent region (i) extending between the first and second conduits, (ii) defining a channel extending between the first and second conduits, wherein the channel establishes fluid communication between the first and second conduits, (iii) having a ramped surface that at least partially defines the channel and extends between the first and second conduits, wherein the ramped surface tapers and curves (a) laterally inward along a first direction that extends from a middle of the bent region and toward the first open end and (b) laterally inward along second direction that extends from the middle of the bent region and toward the second open end, and (iv) orienting the first conduit at an angle relative to the second conduit, wherein the angle is less than 100° and greater than 90°.