Which Aqua Magic do you have?
My model info was on the back of my toilet. To find my toilet info I located the sticker using a flash light. I then used a camera to photograph the label so that I could read the info.
I just removed my Aqua Magic V and replaced it with a Aqua Magic Style II.
Both units have hose connections located on the back side of the toilet.
First I would try a camera or a phone with a camera and see if you can take a photo of the back of the toilet to see if you can ID the source of the leak.
If you can see the source of the leak you will probably need to remove the toilet to gain access and fix the leak. And if you can't ID the source of the leak you may need to remove the toilet to inspect the hose connections and hopefully find the leak.
If necessary you can order parts on-line. And if you have an Aqua Magic V I just happen to have spare parts.
To remove the toilet, make sure there is no water pressure, and then disconnect the water supply located on the back side of the toilet and remove the two 1/2 inch nuts, located on each side of the base of the toilet. You can now lift the toilet up and out and inspect, and hopefully, find and fix your leak.
Safe Travels.
JD
2016 Winnebago Sightseer 33C on a 2016 Ford F53 Chassis
2009 Saturn VUE
Buddy our Bichon Frise
JD & Kathy