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Repair manuals for over two decades of Mac Laptops—iBook, PowerBook, MacBook, MacBook Pro, and MacBook Air.

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How do I dispose of liquid solution after using an ultrasonic cleaner?

I’m planning to use a Crest P1200HT ultrasonic cleaner with 2 gallons of distilled water and 200 mL of Branson EC to clean the corrosion off of some liquid damaged MacBook Pro and MacBook Air logic boards. How should I dispose of the liquid solution (a mixture of distilled water, Branson EC, and bits of corrosion) after using the ultrasonic cleaner? Does this qualify as hazardous waste? Thank you!

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If we read the product label - Branson 100-955-914 Electronic Cleaners, for Oils, Resins and Rosins, 1 Gallon Concentrated

The cleaner its self is biodegradable! But what it cleaned off may not be!

I save up my solution and using a simple sun distiller I boil off the water. What remains is the oils and solids. Then I drop it off at my recycle center with the oil group.

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Awesome. Thanks Dan!

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I have a quick follow-up question - is it safe to reuse the cleaning solution or should it be removed from the ultrasonic cleaner after every cleaning? For example, if I pour in the distilled water and Branson EC, then clean a board, should I remove the liquid from the ultrasonic cleaner or is it safe to keep it in there and use it again with another board? Thanks.

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The issue is what you are cleaning. I have two units one I use for logic boards alone and the other for cleaning corrosion from metal parts using a different solution.

The logic board after 10 or so boards I toss it. The other is using an oil based solution which I change out less frequently as it depends on what I've needed to run through it.

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Gotcha. Thanks for the info as always!

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Zachary Lunte crwdns2893898:0crwdne2893898:0
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