Quote:
Originally Posted by beefORchicken
if you are looking for an inexpensive way to dose you can use an aqua lifter on a timer with air line tubing and a milk jug. i have been using milk jugs and aqua lifters for a while now with no problems. just set the timer (it has to have a 1 minute resolution or less) for the desired amount of doses (ex 5 1min doses over 24hrs) and do some test runs to figure out how much would be dosed.
|
If you want an even cheaper dosing system, use an old air pump. I set up a milk jug with two holes for the airline tubing in the lid. One was from the air pump which pressurized the milk jug, and the other was your drip line with an adjustable valve (an old air valve). I had the air pump run on a timer over night to dose the amount I wanted.
The only problem is that it was not totally accurate and consistent (drip rate would vary with amount of liquid consumed in the jug, and perhaps even daily atmospheric pressure changes). But after a lot of playing around and adjustment, I got it pretty close to what I wanted.
However, in the end, bit the bullet and bought another dosing pump, so I don't use this method anymore. I needed more precise dosing control, without all the adjustments, for what I was doing.