The AquaFinn people are really nice to deal with, at least they've been with me. Finding the leak point is the main issue I'd think first. Then if it's a flaw, finding a reputable repair facility that AquaFinn people will honor under warrantee. I wasn't aware they sold them new "off a showroom" either. My impressions were you deal direct with them...unless you bought it from them at their facility. They're on the east coast and here's their website. American Sail
If it took on THAT much water, you might leave the drain plug in and see where it might come out....as the boat is drying out sitting on the trailer....saving doing a leak test with pressure.
Is there any chance you left a drain plug open when you took the boat out? Double check and try a second sail to see if you are still taking on water. No, not normal for a grqnd new boat unless it was pilot air on your part (no shame, been there, done that bought the tee shirt!)
I sailed Aquafinns as a youth. I loved the rudder and its ability to use a line to pull it up. My Dad donated a bunch to Boy Scout camps when I was in high school. About 25 years later those boats were still being used. I saw them at camp so they hold up pretty well.
Not familiar with the test. Please elaborate. BTW: I imagine if I insisted on a professional repair I'd need to transport to somebody and wait for the work. I don't mind spending $5 on silicone if I can have it up and running in one day
The suggested test merely involves pressuring the hull slightly through the drain plug opening. Soapy water is brushed over the suspected leak(s), while watching for bubbles being formed at the site(s).
When silicone sealer is used, the site must be free of soap, so much vigorous rinsing is encouraged. Drying can be done with hair dryer, so all of this can be done in less than a day.
But since the manufacturer has suggested simply sealing with silicone sealer, anything additional goes against his instructions--and could complicate a warranty claim.