Repair Underground Downspout - Use T Fitting for Drainage, Not Elbow

Shows wrong "U" and correct "T" to in repair an underground downspout missing a "T" fitting and french drain. Don't use a "U" because the "U" will hold the water, not drain it.
Water from the house cannot just sit in the underground downspout "U". It can only drain down into the ground through a "T". The french drain allows the water to disperse evenly. Pop-ups only lets the overflow drain.
The repair is simple.
1.Remove the pop-up and the "U" fitting.
2. Dig a hole for the french drain.
3. Fill with pea stone.
4. Attach the "T" fitting.
5. Replace the pop-up.
See proper construction at http://www.mrhardware.com/articles-and-videos/underground-downspouts-move-water-discharged-from-house/

You can order the grates described here - https://mrhardware.com/store/#!/Underground-Downspout-Kit/p/15106949

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