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View Full Version : DIY Dosing system

Chad Vossen
10-06-2008, 12:58 AM
found this on RC.

all i need is some check valves to give this a try. i already have a 3rpm motor and syringe.

http://nl.youtube.com/watch?v=TmWOykWHEKA&fmt=18

http://reefcentral.com/forums/showthread.php?s=&threadid=1484463
clownnut
10-06-2008, 08:29 AM
looks like a fun project. not sure how many people out there got the space for it....
Goldpony75
10-06-2008, 08:33 AM
I would think the syringe wouldn't make it past the first day. especially when dosing reef elements. it would dry the rubber plunger out and cause it to stick after 1440 cycles in one day
David Grigor
10-06-2008, 10:53 AM
Interesting for sure. But definately have concerns about long term use.
Chad Vossen
10-06-2008, 11:29 AM
we'll see how long it takes for it to crap out on me :D
David Grigor
10-06-2008, 11:35 AM
What are you planning to use with it ? 2 part ?
morty
10-06-2008, 12:02 PM
Those low rpm motors ain't cheap (for a good one). A decent peristaltic pump can cost less than they do...

(Although I see in the thread his total cost is $10. Looks like they must have Ax Man in the Netherlands :cool:)
Chad Vossen
10-06-2008, 02:28 PM
Those low rpm motors ain't cheap (for a good one). A decent peristaltic pump can cost less than they do...

(Although I see in the thread his total cost is $10. Looks like they must have Ax Man in the Netherlands :cool:)

i bought 3 low rpm motors for 4$ each off a surplus site. shipping killed me though. after shipping, the 3 motors came to about 7$ each.


i plan to try this with 2 part.
morty
10-06-2008, 03:18 PM
Sheesh. Oceans Motions should go to a different motor. Theirs are almost $100 if they need to be replaced.
morty
10-06-2008, 03:20 PM
I would think the syringe wouldn't make it past the first day. especially when dosing reef elements. it would dry the rubber plunger out and cause it to stick after 1440 cycles in one day

I wonder if taking the plunger out and coating it with silicone grease would help.
spectrum
10-06-2008, 06:59 PM
For the time and effort put into this project you could of dosed your tank for like a year. I hope it works tho.
storrisch
10-07-2008, 01:06 AM
did it break yet? :gay1:
Chad Vossen
10-07-2008, 03:12 AM
i have it assembled, now i just need to hook up the motor and secure it. im useing a 1ml syringe.
Chad Vossen
10-22-2008, 12:19 PM
my first try failed quickly, the syringe i used was to small and it ripped itself apart.

im not going to push to find a better replacement, but if i do i'll give it a try.