Which ultrasonic cleaner (size) do I need for 15" MBP logic boards

Lately we've been having good luck with cleaning these boards but the time to really get it clean is cost prohibitive. The are lots of units listed out there but just looking at a photo really tells me nothing. I would think one with a heated tank would work better. Also should I try to find one with multiple tubs: one for chemically cleaning and one for distilled water for washing?

In addition what new some of the better chemical cleaner that don't dissipate quickly.

The only tech I've seen mentioning one that works with a 15" board is @reecee

@annettefuller

again I have to go to strangers for a repair part or tool.

Oh, woe is me, Hamlet Act3 Scene 1

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We use a Crest CP500D (1.5 gal.), Air and 13" Retina boards will sit flat in the basket and older 13"/15" and 15" Retina boards will sit inside, but won't sit flat so they have to be 4x (cleaned once a side). This cost me just under £900 in the UK with the basket and lid, there are bigger cleaners but they get very expensive.

With the cleaning fluid, I use Allendale PCB cleaning fluid (£17 per 1L) which works well; 200ml and then fill distilled liquid to the filling line. This tends to last a month till it gets grey and the liquid inside starts evaporating from the heat, but I do clean a lot of boards. Have heard Branson make a good cleaning fluid, but can't get it in the UK and don't see the point in spending more when this fluid does it's job already.

Don't bother with one with multiple tanks (will be more expensive), I just have a tub full of isopropyl which I dip the clean boards in, then leave them a day to dry before checking them. Does it's job, nothing fancy.

Whatever you go with, definitely get a heated cleaner (will not clean anywhere near as well unless heated) with a sweeping frequency (no chance of knocking something off which works fine)

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@reecee thanks so much for taking the time to share your knowledge with me ;-)

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