How to Automate 2-part dosing?

What is a good way, or good equipment to use, to automate 2 part dosing?

 

i use this pump

AquaMedic Reefdoser triple: Premium Aquatics


here's some pics of it setup and the thread in general when I set it up

http://www.3reef.com/forums/filters-pumps-etc/dosing-pump-question-66742-2.html

 

$368.00 it pretty expensive but it looks like a quality pump. Anybody else use anything different?

 

Bulk reef supply offrs good dosing pumps... that what ill be getting when I decide to change my current esv auto doser.

 

that's the price for the three unit doser... you only need a two head doser for 2-part. That's $270

AquaMedic Reefdoser double: Premium Aquatics

 

$200 at brs for two elements
BRS 2 Part Doser (1.1 mL Per Minute) - English

 

Right, so they're the same price. The one I have, you can get a single, double, triple, or quad. Each is an extra $100 bucks.

The difference is those individual ones take a lot of plugs and you still have to get some sort of timer for them, etc. The unit I got, for an extra $70, I get only one plug with a built in controller.

For me, that's a better deal

 

true on the outlet space....

All depends on the setup....

 

K+ on the bulk reef supply link. What kind of timer would work for that thing? I would think you would need a good digital timer because it would only need to run for a few seconds at a time.

 

Peredhil you're right. I just noticed the one you use has built in timers. How big is the unit?