This is how a neighbor solved the problem but for only one scupper

Here isn Florida, all homes get Commerical sized gutters. If you get even more rain then perhaps a larger gutter is appropirate.

Flooding is at this area and it seeps in under this door into the house. The plan was to attach another section of drainpipe and send the water out to a swale. The original builder did not grade the property correctly

The gutter is 6” wide. The problem is the scuppers extend 3” into the gutter and the gutter connects to a 3” downspout, which I’m not sure is adequate. The rain would shoot out of the scuppers like a fire hose. These are the other scuppers on the same side of the house that were not cut off

Thanks for the info, Beverly! In our area gutters are not used on flat or pitched roofs

before changes were made to the design and materials

What changes were made, and why?

not convinced what he did would alleviate the flooding we get during monsoon season

Why is that? What flooding do you get?

We discussed how that would look and agreed to this set up. It is not what we were expecting

What did you agree to and what were you expecting?

It does not look like it was professionally installed

Why do you say that?

We don’t think the downspout will handle the huge volume of water we get.

I'd probably agree. What size is it?

Your guy is probably accustomed to guttering a more standard house with a sloped roof.

I would expect something like what your neighbor has, with larger downspouts.

Where are you wanting to direct the water?

I have seen installs where multiple scuppers were tied together into a single downspout, using larger pipe.

For your house, I would ask for a box gutter profile -- basically square with a square or round downspout. Probably a commercial gutter contractor rather than residential.

Yes, PPF, we originally planned on something very similar to what you showed. The contractor convinced us this would be better looking and just as efficient.

We get torrential rains in the summer. Water builds up to 6” by the door and seeps in. Last year we tried sand bags but they rotted in the sun.

Does not look professionally installed because of how he cut off the scuppers. See pictures. He was supposed to fabricate covers and install them today but hasn’t gotten here yet

It is a 6” gutter but the cut off scupper extends 3” into it

And thank you, PPF!

You have got this in a mess,,,,,,,,YES YOU hired the residential and by all indentations, a greenhorn at that instead of a professional commercial roofer. YOU started right off trying to help design the job knowing full well you don't have experience. YOU chose to go on the web and ask other amateurs instead of hiring a paid consultant when things jumped the rail. BEFORE you signed a contract was the time to get on the web or go to country club asking advice. My advice would have been , hire the best commercial roofer in town then follow his advice. Now that you are on this sinking ship my advice is hire the professional you failed to hire when this started. Pay the new in town Middle Americans for what they wasted and send them down the road. And stop hacking on the scuppers , once screwed up they can't be changed like a pair of socks, scuppers are tied in with roof membrane which is a pretty involved process. Start over now and save the hassle between now and when you have no choice but start over.

Case closed. He returned and covered the scuppers to our satisfaction, a professional commercial installer. Now we have to wait for the monsoons to see if it solved the issue.
Thanks for your help, Klem Kadiddlehopper. Bless your heart