It's a coated magnet.
^^^^^^^
Are you "BillNye" the Science Guy?
Post a link to them, Please Sir.....
Haha I wish!
I got two of these, I am not so keen on the plastic fittings but I don't plan on hanging it off the kettle so I will see how this works out before spending more than triple the price on a topsflow.
http://www.ebay.com/itm/230941130611?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
I have two of these also. I hang mine off the kettle. I'll feel like a dope if I ever bump into it and snap it off...
FWIW these black ones seem to pump faster and get stuck less often than the little tan ones.
Yeah there's definitely no room for a coating. That silicone lubricant may be better... but I have never used the stuff so idk how well it would work.
That won't work either as it will just get washed away the first time you use it with hot water/wort.
Have both and can confirm the black ones are more robust. The tan ones rely on a brass bushing as a "bearing" it is easy for that bushing to get gunked up and stall.
What do the black ones use for the bearing? I would say (just from the aparent size) that the black ones don't stick as much because they have a more powerful motor.
Might be the "wired to work with our variable speed controller" part.
Might be the "wired to work with our variable speed controller" part.
What do the black ones use for the bearing? I would say (just from the aparent size) that the black ones don't stick as much because they have a more powerful motor.
Much too small IMO.
Has anyone got the topsflo pump and checked to see if the magnet was actually coated?
I have been emailing back an ebay seller of the larger topsflo knock-off trying to get them to give me the manufacturer's email. So far all I have gotten from them is an offer of 5$ back and that the pump is made from Acrylonitrile Butadiene Styrene. They don't seem to get my point about the magnet.
So are these pumps actually made of ABS? I thought ABS had a working temp limit of <90°C? Could this be a reason for peoples pumps binding up?
Much too small IMO.
I finally got a response on the magnet. The manufacturer says the magnet is a carbon-steel magnet and is safe for food contact. Whether this is true or not idk. I tried a quick search and didn't pull up anything out of the ordinary.
Aren't cell phone chargers 12v converters? I used one to power a computer fan in my diy stir plate. I would think that u could just wore an old charger to this pump....
Just came across this thread, read quite a bit, but not all of it. Ended up ordering a few pumps a couple hours ago. Quick question, is everyone using 1/2" tubing? I assume most are due to the 1/2" connections. I'm wondering if you would actually get more flow using a smaller diameter on the outlet of the pump (increasing the pressure?).... Just curious, thanks
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