reefphilippines.com

Hi guys, wanted to share my diy syringe pump/dosing pump
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Materials
= chooping board(plastic)
= old fan swevel motor
= 1cc syringe
= nut, bolts, washer, screws
= drill, ruller, marker, saw, sandpaper

Delivers o.6 cc per second depends on how u adjust the plunger
Use this as my top off, runs 8 times per day.

how does it get the liquid from the container to the tank?

i am very interested in this... could you please post the instructions how to do this? thanks and good job!

Also interested on how the liquid gets in to the syringe.

Also, what is the blue plunger thing with a needle stuck on it? That is not a regular syringe plunger is it?

edited your picture sorry


a) is where the liquid goes into the syringe? it passes inside the plunger?

b) plunger end is cut off then resealed?

Hmmm, so there is like a tee with check valves at the tip of the syringe?

Hehe I can't work out how the fluid would need the syringe to drip. check valve from supply prevents fluid from going back up but at the same time is it connected to the drip check valve?

I think there is something that I am missing here. hehe.

You will have a tee connected at the tip of the syringe with two check valves place at two different position as to when the one is open, the other is force to close making the flow one way

very nice! I understand that part now thanks! There is a pump pushing the fluid into the tee right? So the syringe can suck the fluid?

is there a way to use your system without a pump?

Thanks

Doesn't it create a siphon effect? Or is the container lower than the sump/drip area?

Is the container airtight? Or is there a way for air to enter?