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Joined: Jan 2018
Posts: 39
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OP
Joined: Jan 2018
Posts: 39 |
Figure up all the open area in your guard, and then compare it to the cross sectional area of the pipe. The longer the guard, the greater the open area.
If the guard went straight across, flat to the end of the pipe, your assumption would be correct. The guard is cone-shaped, so I suspect the total area of the openings exceeds the cross sectional area of the pipe.
The guard may modify the way the water goes in by creating vortices at full flow. Those calculations could be approximated with a hydraulic study, which the company said it did not do. Personally, I would leave the guard in place, otherwise some sticks could get across the opening, trap other debris, and block a large portion of the flow. Ok, that makes sense. I won't be back out at the property until tomorrow but I will figure that up and see what I come up with. Thx!
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