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Old 02-08-2009, 05:37 PM   #4 (permalink)
Patchworks
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Join Date: Dec 2008
Location: Katy, TX (Outside Houston)
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Default Re: DIY liquid auto doser

Quote:
Originally Posted by jpmtotoro View Post
yeah i didn't like the price tag either, but it has worked out to be pretty good. plus these are fairly heavy duty pumps... i plan on running them for a looooooong time.

i haven't seen the tom's pump thing before (just looked at it). certainly interesting... i never found any decent stuff in my searches so i decided to suck it up and do this. it was a while ago... i was just too lazy to post the pictures up here!

i'd be interested in seeing the durability of these 15-dollar pumps, plus the actual strength (can these push liquid against gravity for 5-ish feet?)... but definitely good for the budget-minded (I know I would have jumped all over them when I was a poor college bum).

thanks for sharing!
Yeah, I think those cheap tom's dosing pumps are only rated for 30". I thought I read that somewhere. Head pressure is not as big of an issue for me cause I'm building an all in one inline Heater, CO2 Reactor, Liquid Ferts which will all be under the tank.

I'm actually working on a project that I use an air pump going into a gang value concept. The parts should be coming in this week.

g
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