diodeart
Well-Known Member
Thanks johns, and thanks spellman for testing these out.
To add to the above does anyone have a link to a cheap power supply/pwm controller?
For me, it did work but I didn't like the noise the pump was making.
This is what I ordered for a power supply. Hope it works!
http://www.ebay.com/itm/151013314886?ssPageName=STRK:MEBOFFX:IT&_trksid=p3984.m1432.l2649
Good find, I just ordered one of these too!
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another question about these pumps. What kind of tubing is everyone using here and where can it be found. A few places sell the 1/2 variety, but its only rated to about 175f. I was thinking to make it effective and not flow restrictive 3/4 inch hi temp silicone, but I am not sure where to look for this. Any ideas?
I thought of that also, but the the inside diamater that they sell on barginfittings might not fit on my black pump with a 3/4 inch (or near to there) OD. I am using the proflow dynamics cam locks. How do you squeeze 1/2 inch tubing onto a 3/4 inch OD? Or maybe just get larger tubing?
I dont fully understand the head height vs friction math, but if I needed consistent flow at 4' head, I could achieve this with 3/8 tubing vs 1/2 as there would be less mass to push up correct? Or would friction negate any gains?
johns said:I thought of that also, but the the inside diamater that they sell on barginfittings might not fit on my black pump with a 3/4 inch (or near to there) OD. I am using the proflow dynamics cam locks. How do you squeeze 1/2 inch tubing onto a 3/4 inch OD? Or maybe just get larger tubing?
I had been following this thread for the first hundred or so posts. There was talk about PWM, and other ways of controlling flow. I'm wondering, of those who actually have one of the tan Buy In Coins pumps, is there a consensus on the best way to control flow? I was just planning on a ball valve on output side, using this mostly for a CFC, so mainly only controlling flow if wort temp was too hot coming out full throttle. Will just using the valve be OK or are there any concerns?
alien said:Haven't tried it. I would say that power supply is OK for 1 pump. For $2 more you can get a 5A supply, I would go for that for 2 pumps.
http://www.ebay.com/itm/Universal-12V-3A-5A-10A-15A-20A-30A-Switching-Power-Supply-Driver-for-LED-Strip-/360607030074
johns said:nothing else is needed,,,just plug and play...to regulate the flow (if needed), use the ball valve, like brooks said (shawshank redemption) easey peasey japanesey.
I have the black one and I run it though a 20 foot CFC with no problems, Only difference is I use 1.6 amp power supply I found laying around somewhere, cut the ends off and attach it to the wires.
I guess its everything pictured. I just found and old powersupply unit from an old labtop and it works perfectly. I just cut the ends off and attach it to the pump.
If you buy that its ok, If you want to find an old labtop PS unit, or even some cell phone chargers will work (or so its been posted here).
Requirements would be at least 1.2 amps. Less than this I think affects power output. 1.6 amps works well and someone on this thread also recommend this type of amperage. 2 or more amp i guess would also work, but I guess it affects the life of the pump. 20 USD is not alot, so I would not worry about it, relative to buying a march or a chugger pump. Like you, I have no background in any type of electronics, so for me to hook it up was really nice. I would not worry about electrictuion. 1.5 amps is nothing. I have been shocked with 220 volts and still alive to talk about it (the connection was not wet).
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