Metering and dosing pumps from coffee and dish washer machines - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 10-19-2016, 08:36 AM Thread Starter
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Metering and dosing pumps from coffee and dish washer machines

Does anyone know if the small pumps from coffee machines and even dish washers (some have small dosing pumps I believe) good enough for a diy dosing pump project?

I mean, such machines cost very little, some are even free, on the 2nd hand marked!

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post #2 of 6 (permalink) Old 10-19-2016, 01:45 PM
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You can get a peristaltic pump for $9-$14.


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post #3 of 6 (permalink) Old 10-19-2016, 01:52 PM Thread Starter
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Hmm 9 bucks vs dismantling an old dishwasher seems like an easy choice.

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post #4 of 6 (permalink) Old 10-23-2016, 06:22 PM
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Coffee pots do often use a small pump which might help. I'm not sure of the design difference in your dish machines but the ones I deal with do not have a dosing pump but more often I think of extras being in compartments which flip open to release the contents at the correct time. Small pumps designed for tiny dosing may work better as the coffee pot is designed for larger flows than I think of in dosing. Cups rather than drops?
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post #5 of 6 (permalink) Old 10-23-2016, 07:01 PM
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I have had 2 Keurig coffee machines and the amount in my cup is not always the same each morning, therefore I wouldn't trust it myself.

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post #6 of 6 (permalink) Old 10-23-2016, 10:32 PM
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i hardly can bieleve you can find something cheaper than "12V DC Dosing Pump Peristaltic Dosing Head For Aquarium Lab Analytical Water DIY" from the bay (search).
I built myself several auto-dosing systems with this items, based on arduino. way to go IMHO.

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