Where can I find a low flow 12v dosing pump?

[IPT]

Where can i find a low flow dosing pump for my Alk? I found Kamoer pumps and bunch of other ones on Amazon for like $10 or less, but they are all 25ml/min or more. I know my ReefFactory 4 head Pro unit is rated at 7-9ml per min. They must source these from somewhere?

I plan to use the Hydros platform to make a doser. The higher flow rates are fine for Trace elements (and I am using one of those $10 pumps now for this) and probably even Kalk but a slower flow rate seems better to reduce the chances of percipitation with Ca and Alk.

Now that I am thinking about it, maybe I can just set it up to dose like 100 times a day so it doses very small amounts but this is a work around at best. Rather have a low flow dose head.

 

[Fish Fan]

I use cheap, 12v dosing pumps with my Robo-Tank controller, and though they are rated for 70 mL/min, with the controller I can run one for as little as one second (possibly even less), which would dispense just 1.1667 mL of liquid. I don't know how the Hydros controller works, but I would think you could do much the same.

These are the pumps I purchased

I hope this helps!

 

[oreo54]

Where can i find a low flow dosing pump for my Alk? I found Kamoer pumps and bunch of other ones on Amazon for like $10 or less, but they are all 25ml/min or more. I know my ReefFactory 4 head Pro unit is rated at 7-9ml per min. They must source these from somewhere?

I plan to use the Hydros platform to make a doser. The higher flow rates are fine for Trace elements (and I am using one of those $10 pumps now for this) and probably even Kalk but a slower flow rate seems better to reduce the chances of percipitation with Ca and Alk.

Now that I am thinking about it, maybe I can just set it up to dose like 100 times a day so it doses very small amounts but this is a work around at best. Rather have a low flow dose head.

This lists .5ml/minute.. :)
https://www.ebay.com/itm/2365045568...9LnWU2abHgl6NApLY3o353SpYDrdOKFBoChfsQAvD_BwE

The maximum flow rate tested using our store's stepper motor drive board is 0.5mL/minute.
The stepper motor can achieve high-precision quantitative output, but specific research is needed.

Our store's simple driver can support a maximum voltage of 3-5V and can be powered by a single 3.7V lithium battery.
Low voltage will affect the maximum speed of the motor, and the flow rate will be smaller under low voltage power supply.
Stepper drivers need to be purchased separately.

 

[IPT]

This lists .5ml/minute.. :)
https://www.ebay.com/itm/2365045568...9LnWU2abHgl6NApLY3o353SpYDrdOKFBoChfsQAvD_BwE

Yeah, but it is only 3-5V. I am pushing 12V. I did see some lower flow ones on Amazon, but there were also lower than 12V.

 

[pooootiqe]

Some models of Kamoer KFS can go down to 1ml/min (the one with a gearbox), but I don’t see them on eBay or Amazon right now.

Lefoo does have 0.5ml/min models but I’ve only found them from China.

for the cheap Kamoer NKPs, there is a chance you can just swap out the silicone / BPT tubing to a smaller diameter for <10ml/min. I think the default is 3x5mm? Check USPlastics for peristaltic pump tubings. As long as the wall thickness is the same they should operate just fine. (Need to swap out the connectors too, of course!)

 

[pooootiqe]

If you’re a patient man…

https://www.alibaba.com/x/B2XKec?ck=pdp

 

[IPT]

I found this through a Hydros forum post. Pretty slick. Youn can choose the internal tube diamter and gear ratio resulting in a really slow fluid administration rate (as low as 0.27ml/min!).

Its not the Amazon pump with 2 for $15, but I can use them for everything aside from my AlK. I currently use the ReefFactory Pro which is rated at 9ml/min but it dumps into my high flow area of my sump and the new tank will be sumpless so I want something slower.

Anyway, here's the other pump. Its on simply pumps.com.

Customizable low flow 12V pump

 

[IPT]

This one too on Amazon from the same company and rated at 7.2 ml/min and slighly cheaper.

PM100T Peristaltic Self Priming Micro Mini Pump with Tygon Fuel and Lube Tubing, 12V DC, 7.2 mL/Minutes​