if youre cleaning non bong stuff a drop of dish surfactant (jet-dry) will dramatically improve your results. i used to use an industrial model to clean parts for work. we used a bit of dish soap until our rep recommended jet-dry. made a HUGE difference. only takes a drop or two
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Cool man thanks for the info.
I might just have some jetdry.
Please tell me more… You are using an ultrasonic cleaner to germinate? Or did I misunderstand?
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As a preparation for germination, basically to zap any virus that might have been on the outside.
Here’s where I started with the ultrasonic:
(there’s some good background info on cavitation)
That ‘gold standard’ turned out to be crap, I now use JohnnyPotSeed’s germination method after the ultrasonic cleaner.
The ultrasonic cleans up the outer surface and the EWC works it’s magic on the beans.
What I have found with Johnny’s method is it will get really weak beans to pop but they generally lag a couple days and those ones will almost always die.
The first bunch to pop are the keepers. 
The reason I’m concerned about the outside is information I’ve read indicates that TMV (tobacco mosaic virus) will hitch a ride on the outside but is not inside the shell.
Cheers
G
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I have been doing a lot with ultrasound lately, Ifirst started using it for making liposomal vitamins, then aging alcohol, then making tinctures, then fat cavitation,then on my colloidal silver,then on viagra, then on grain fermentation, then on my cannabis oil and edibles, then on my fertilizers and pesticides. Even before all that was experimenting with the idea of hooking it to the housepipes to keep them from freezing, rusting killing bacteria and keeping pests away as they are drawn by the moisture of the pipes and is the highest used route for crawling insects to enter. I would be a little leary of using it for preparing seed for germination. In water ultrasound creates cavitation, bubbles/pockets of air left in the wake of fast moving short waves of sound. ultrasound travels very good in solids and liquids but not so well in air and that creates heat.Some uses of ultrasound are on shipping vessels to keep the hull free of growth, sterilize water, homogenize milk, Cleaning, Reducing particle size,. Keeps viscous fluds more mobile. Creates emulsions so your oils and waters do not seperate, helps remove air from liquids and to seperate into layers some liquids,as fish finders, checking welds, for seeing inside people and breaking up stones and clots, in physical therapy to help bones heal and soothes sore muscles, , keeps rodents away from a garden when staked in the ground, I have thought it might help roots travel easier in a soil medium and stimulate growth while reducing buildup of unabsorbable matter on the rootstructure in hydro and soil. All that said I think It would do more harm than good on the cellular structure of a seed. possibly affecting the genetic makeup or damaging it to the point of not sprouting. If I did try it I would put the seeds in a porous bag and just swish it through a water-hydrogen peroxcide solution in an ultrsonic cleaner a couple of times to knock off and kill anything on the suface of the seed and double blind test letting us know how it went.I am sure ultrasound has much to show us we have not thought of yet. Something we cant even hear can have an impact in so many waysI do not often write and I am sure that most who read this will have questions. If you are persistant and not just wanting me to do all the work I may answer…
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But before doing anything wouldnt a hydrogen peroxide or colloidal silver solution work by their selves?