Grim, I can't make heads or tails out of the functions shown on the face of your generator. If its "bubbling" you might be running with amperage that is too high and reacting too fast, which would probably be making larger particles than desirable. Or it just might be the result of no water movement or mixing.
A simple solution for that can be found at any pet store that sells aquarium supplies. Get a cheap, small aquarium aerator pump and run a piece of plastic tubing (usually included) to the bottom of your reacting vessel, preferably centered at the bottom, between, but not touching your silver electrodes. Actually the tubing should be attached in some way that it runs down the inside of the vessel wall with the end curved to the center of the jar at the bottom. Water movement will keep the reacted particles from agglomerating into bigger particles between the electrodes. My Silver Puppy does this function by way of a small magnetic rotator at the bottom of the jar.
Is your finished product clear or slightly yellowish/gold... or worse... darker?
If you look at that pic in my post (above), you see that tubular meter thingy with the blue cap on the end. That is a dissolved solids meter. A real good piece of equipment for DIY silver. You can test the distilled water, before you run a batch, to determine how pure it really is. You can then subtract that number from readings of the silver batch taken periodically during the run. The silver will also meter as a dissolved solid, so you can get a good estimation of your true part per million.
Take for example; your pre-tested distilled water is reading 1.79 before the run - and your run reading is 14.8. This would indicate that your batch silver content is about 13 ppm, which is near optimum for home brew. Stop the process.
If you try to go higher ppm, you will likely be generating larger and larger particles as the time increases. This large particle batch will not be very bioavailable, therefore of little effectiveness for internal consumption.
You can find dissolved solids meters in just about any laboratory supply house. I got mine when I ordered my Silver Puppy. They are only about $25.00.
Once you have that, you can then experiment with the voltage settings to find the method that makes a clean and clear 10 - 15 ppm batch.
I am not a big fan of ionic home brew silver for internal consumption, but I would certainly use it before I would do without in a pinch. I depend on the ASAP exclusively for prophylaxis. I haven't used any of last year's DIY all winter and my stored batches are probably all settled out and flat after months of storage. With summer and sweaty work clothes season upon me, I'll be putting it into the rinse cycle of laundry loads. It will probably still be OK for that. It does a good number on the bacteria in stinky T shirts and sweaty socks.
If you could scan the instructions/tech info that should have come with your generator, I might be able to figure out how that unit works.