|06-17-2011 09:45 PM|
I've used a pair on a client tank.
They have been fairly consistent once to tweak them and fiddle with the head height and run them a few times.
Careful with backflow, make sure there is an air gap at the end of line into your tank. Also, run test runs using only water, a good timer and min settings are key.
Timers often cost more than the pump.
|06-17-2011 08:51 PM|
People have been trying for years, but there's no substitute for a peristaltic pump. I went the more expensive route with a GHL profilux as I wanted some of the extra features, but there are ways to save a few bucks without sacrificing accuracy.
You can put together a quality 2 channel setup for < $200 now. The Bulk Reef Supply peristaltic pumps have a really good reputation in the reefing community. Rig up your own dosing containers, a couple timers, and you are dosing automagically.
Youtube Video Link
|06-17-2011 08:22 PM|
yeah, mine did not work out, I had it set up but the volume dispensed changes each day because the water level in the jug dropped. Probably didn't help that I was pumping the fluid like, 4 feet up into the main tank.
These would, I think, work great to dose if you were doing a sump.
|06-17-2011 06:45 PM|
I would bite the bullet and get the bubble magus dosing pump, it's the best $250 i ever spent, you can probably find it even cheaper on [Ebay Link Removed] I have it setup to dose 1ml everyday before the lights come on and it's precise to the dot. You also get 3 dosing pumps in one and this will last you a long time as the only thing that needs replacing is just the tubes (1-2 years).
|06-17-2011 05:18 PM|
|CuLan||Tom Barr mentioned IV drip and solenoid.|
|06-17-2011 01:21 AM|
|Tmos540||Man I have been trying to fin a way to deliver a single milliliter of liquid daily and so far, no luck at cheap prices. Any suggestions?|
|12-11-2008 09:04 PM|
|moogoo||from what i've read w/ the 30" limit on these aqualifters, it's ability to PULL liquid is 30" limit, but it can also push the liquid quite well afterward. i ordered one and will be putting it through tests to see how to set it up w/ my new tank setup. i figured it'd be the cheapest, easiest way to autodose and auto top off. i'll have updates in my thread when it's all said and done|
|08-15-2008 05:19 PM|
For macros except P, I like to use a water pump. Compared to the AL, it mixes the solution each time it is dosed, and it is not as dependent on head pressure.
To dose P, I prefer a little test tube full of it, dissolving over time.
For micros, I think peristaltic pumps are the best choice.
That said, the Aqualifters will work just fine.
|08-15-2008 04:20 PM|
|08-15-2008 03:56 PM|
I prefer different ways to autodose, but you should try the Aqualifter because it is pretty simple to set up.
|08-15-2008 03:15 PM|
I am using enteral pumps that I got really cheap from an auction. Now I am running 2 of them - one for the micro nutrients and the other for the macro.
I am using a gallon milk jugs and dripping at 5 ml/hr. A gallon will last for about a month.
|08-15-2008 02:24 PM|
It takes more "finesse" to get the drip rate where you want it, but still works.
|08-15-2008 01:11 PM|
|garuf||Any chance of an update on this? It's something I would really like to try!|
|07-30-2006 02:24 PM|
My sump tank is a 20gallon high tank. The reservoir is sitting on the bottom of my 180gal display tank stand (so is the sump tank). The Aqua Lifter pumps is sitting on top of the sump tank's lid.
The pumps are plugged into a digital timer that can be set in 1min increments. I currently have the timer set to 2minutes per day.
From the floor of the stand to the pumps connector (the highest point) is 18".
At this height the pumps average flow rate is 90mL per minute. The flow rate is about 20% faster when the reservoir is full, and about 20% slower when the reservoir is near empty. At this flow rate I can mix about 15days worth of fertilizer with 3 Liters of water.
I used a measuring cup and a marker to mark my reservoir in 200mL increments. This makes calibrating and refilling it easier. I used a stop watch to measure the flow rate recording it as the fluid level passed each of my volume marks.
I'm done testing it with water, and have had it hooked up with actual fertilizer in the reservoir for just a few days. So far all is working well. However to play it safe I'm only putting 5 days worth of fertilizer in the reservoir at a time and checking it daily to monitor it. After I am satisfied with it's long term reliability, I'll add more fertilizer and check on it less often.
|01-17-2006 08:57 PM|
|csf||While I haven't tried it, i figure that model airplane fuel pumps could work very well for this set-up. While I don't know if they have some oils inside to help seal things up, they are fairly cheap. Look up hooby lobby on google. They were about $20 apiece.|
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