automatic water change

I think that was the wrong video......of it not working........

Anyway so far I've observed the 24v supply I've been using starts out at a stand still if left sitting too long but eventually starts turning very slowly until it breaks free and starts turning at normal speed. Still with all three heads, I've not tried it yet with only two, but my goal is to change out water on the frag system at the same time with the same pump if possible. long Term that would not be good for the motor. So I may end up only using two heads or finding a different supply, I have a 14v supply that works every time so may end up using that. But I have a box full of 20-24v supplies I will probably also try out as I'd like it to be running at spec if possible.
 
zachts said:
Anyway so far I've observed the 24v supply I've been using starts out at a stand still if left sitting too long but eventually starts turning very slowly until it breaks free and starts turning at normal speed.
Click to expand...

That is the way my 12v 1amp is. The new video of the 12v 2amp is uploading now.
 
Here is a video of the new 12v 2 amp, running strong.

<iframe width="420" height="315" src="//www.youtube.com/embed/JKQgoRXvs38" frameborder="0" allowfullscreen></iframe>

This is a laptop PS made by Jentech Technologies.

IMAG0160_zpsnqzctdg1.jpg
 
OK. Well we seem to have found something that works on the ThermoFisher D3138-13 motors. (at least for 2 of us.)
 
Mine is actually 3A. But its identical to yours in the rights that its 5v and 12v. My 3l cheapo ebay supply should be here and ill let everyone know of the $8 psu works as opposed to a $30 psu
 
Ok, pump came in. Wow this thing is a beast. I got my food grade tubing (thanks zachts) so I'm all set there.

Was hoping to use an old printer PS I had but its 32V/16V so I'll have to start hunting.... zachts if you get any info on the specs lmk. I don't mind ordering something new to get it running properly..

I think I may be able to run the long distance tubes without having to run thru the attic but I've got quite a bit before I can get everything setup anyway.

This will be a 1000 step journey...I'm on step 3 now...
 
the 16v side should run it ok, mine will turn off of a 5v cell charger just not real fast. 24 volt is what its rated at but like most DC motors it should work fine with lower voltage as long as it is not straining to run. I think on this motor its start up current that seems to matter. My 24v epson supply was only 1.1 amps and won't start it up reliably under load but a Cannon 24v 2.2 amp supply starts it no problem. Oddly so do many lower voltage supplies it just runs slower.

I've not had a chance to contact the manufacturer yet, work has been busy this week.

I know the feeling as well, I thought I had everything but the pesky float switches I was going to use seem to fuse when switching he pump directly which leads me to belelieve it draws a high start up current even though the meter never reads past 400mA. Now I'm waiting on a few relays. but I did change out 5 gallons this weekend while watching TV and didn't have to lift a finger (wait I had to lug the buckets around as I haven't drilled holed down to the basemement yet :lolspin: but otherwise it works great!
 
Thanks zachts. I think it was a low amperage, I'll check tonight. I'd rather have the full speed of the pump available and limit it via timer.. The flow rate you measured earlier was with which PS? Seems I can get a used cannon one for around $20 so not a big investment..
 
It was with the epson supply, but it turns just as fast, at least eye-balling it. with the cannon supply. Only difference is higher amperage from the cannon supply. just look for something bigger than 2 amps and I think it will be fine. I don't think the type is important just the amperage, I've got a 24v 10 amp brick I'll test later and a 20v 4 amp old laptop supply also that I'll check just for fun.....

Try hunting around for electronics recycling drives and go "borrow" a supply in exchange for some old piece of junk you don't need....... most of my collection came from my work recycling drive pile which I raid for any useful piece of dead or salvageable electronics from time to time.
 
Great thread AWC is gonna make my life so much easier. Question for you stenner pump guys. Currently I have a 60 gal reef savvy with about 55 gallons of tank water. I'm in the processed of setting up a mixing station (waiting on tanks to ship) and have decided to take the stenner pump route. My question is should I just get the 170 gallons per day low pressure non adjustable unit (170DMP5). I know its over kill but IDE like to future proof this setup as much as possible. the difference in price is only about $10 and the units are identical in dimension and specs to the 100 series (except for gallons per day). I will just have to shorten the time it runs. Looking to upgrade to a ~200 gallon tank in a year or two. Please advise. Thanks in advance
 
Chris, I have a 550g and am planning to go with the 170dmp5 as well, unless someone posts a compelling reason not to.
 
170gpd is like 10 minutes of runtime per gallon. Which I think is enough resolution to run throughout the day for a 60g doing like 1g a day. Even if you were to do less you could still break it up. For only $10 and a tank upgrade in the works, i think its a no brainer.

On the other end with the 100gpd its closer to 20 minutes for a gallon, so you still have plenty of resolution and enough time to change whatever water you want.

In the end it really doesnt matter. Both are going to change more water per day then you need...
 
smb2415 said:
Chris, I have a 550g and am planning to go with the 170dmp5 as well, unless someone posts a compelling reason not to.
Click to expand...

I dont see why going to 170gpd would be detrimental. Keep in mind that the 100 or 170gpd is for both pumps meaning it does 50, and 85 gpd per head respectively.

To me the Stenner s for routine daily changes. I still have my WC station set, so can do over 100 gallons by just hooking up my garden hose to the station and do that way in no time (approx 35 minutes).
 
Yes. That is about what they are going for now.
When the seller first listed them it was like $30, but he realized what he had and that they were coming into demand because of this thread and he upped the price.
 
iced98lx said:
Getting ready to do this for the new tank build, is http://www.ebay.com/itm/AMETEK-3-Li.../111236024349?pt=BI_Pumps&hash=item19e62f081d a decent deal at $85 shipped for the three head pump?

I am just about done figuring out the 24v PWM controlled by my controller, so hopefully that will work out alright.
Click to expand...

Keep in mind this pump has a maximum of just over 24 gallons per day per head. Plenty for most applications. Works great. If you need tubing for it PM me I have extra.

I'm putting the finishing touches on my setup today and should have it up and running this afternoon.
 
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