
Tests performed by Intertek Testing Services NA Ltd. on a standard 5" rain gutter / eavestrough.
Even when most of perforations are blocked, the Clip N GuardMC still efficiently drains without overflowing.
| Holes blocked | Water flow | 
|---|---|
| 0 % | 29,7" (755 mm) | 
| 50 % | 21,1" (537 mm) | 
| 80 % | 12,6" (321 mm) | 
When debris sits on top of the Clip N GuardMC, it can be easily dispersed by a light wind. Wet leaves will dry up quickly and disperse without intervention.
| Debris (measured 12" (300 mm)) | Required wind speed | 
|---|---|
| 20 dry leaves | Negligible | 
| 200 fir needles | 8 km/h | 
| 20 wet leaves | 10 km/h | 
| 100 pine needles | 10 km/h | 
With 312 perforations every 12 in. (305 mm), the Clip N GuardMC can drain 29.7 inches (755 mm) of water per hour per linear foot - 3 times the highest rainfall ever recorded during a storm.

 
						
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