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Yes, the ball valve does a fine job of adjusting the flow. It does work the motor a bit harder when you restrict the flow, but so far I've had no problems.

Here are some close-ups of the pump with my 1/2" camlocks from Bargain Fittings. Cleanup is really easy because I just flush it with hot tap water through both ends.

I'm sure these two pumps aren't in the same league, but it will be nice to see your comparison so we know how many leagues apart they are. I would guess that the low pump head spec will be the biggest limiting factor when compared to a March or Chugger for some brewing configurations.

Great idea! A simple inline potentiometer like the ones used on the diy stir plates might do the trick.

Check out the thread I started a couple months ago. If you don't need high flow rates or high "pump head", then this might be a viable option for you: https://www.homebrewtalk.com/f11/cheap-compact-wort-pump-375904/

Nice find! Comparing the specs, it looks like the P-38i has the edge on service life, current draw, and operating temperature, and this one has the edge on noise level, output, pump head, and price. I can't wait to see your results!

I finally had a chance to use this little pump for a brewing session and I couldn't be more pleased. I've posted some pictures below with my 1/2" camlocks installed and a short video clip of this pump recirculating wort. Thanks to Newbeerguy for the Eliot Ness clone recipe...

That definitely has potential. I've been considering building a temperature controlled gas burner with a 12V valve and pilot light to go along with my 12V pump. That box would be a good fit for that as well.

I have an SLA battery charger, so I will probably keep using the battery. If it doesn't last long enough to go through a brew day, then I will dig through my stash of old power adapters and find one that outputs 12v DC at 0.8A (or more).

The pump seems to do fine when throttled back. You can hear it running faster the more you restrict the flow, so we should probably do a long term throttled test to make sure it doesn't eventually burn up. As far as the fittings, just put 5 or 6 rounds of teflon tape around the fittings and...

I finally got a chance to do a dry run (er, is it a wet run?). I was thoroughly impressed and I think it's going to do everything I need it to do. Check out my video below. Note that I just shoved my 1/2 silicone hose over my 1/2 MPT/BSP connections for the purpose of this test. They leaked a...

Yes, that's the one. The plastic is a little more beige than in the seller's picture. I'm happy so far, but I came down with the flu this past weekend and didn't have a chance to give it a full evaluation. Hopefully, I'll have time some evening this week.

According to the manufacturer, they are 1/2" BSP connections. They don't look tapered, so they are probably BSPP. They seem to fit nicely into my 1/2" NPT fittings, but I'll have to do more testing to make sure they don't leak with high temperatures.

24 days later and the pump finally showed up from Hong Kong. It should normally take about 10 days, but the Christmas season added 1 to 2 weeks delay on the transit time (this was expected as it was mentioned in the ebay listing). My first impressions are that it is more compact than I...

I went ahead and bought the $22 pump off ebay as I think it will be adequate for my needs for now. And really, at this point, i just want to see how viable it truly is as a wort pump. I'll do a review once it comes in.

I found another video of the pump in action: http://youtu.be/suv3vqGnoFg

Hey guys, I was trying to find a cheap (<$150) wort pump and was not having much luck. Then I came accross this video: http://youtu.be/BmayIQCfyRc I liked how his wort pump was compact, low voltage, and was able to connect it right to the end of the ball valve. Pretty slick. I think I...

BCS with an iPad or Android tablet would give you an easy to implement touch screen interface.

This whole idea gives me an uneasy feeling. There's lots of pitfalls to watch out for. Have you considered going electric? There would be less excess heat and moisture and less chance of burning down your house or getting CO poisoning. Since you are going to have electric service installed...

I've heard the same thing that co2 will last longer if you keep it outside the kegerator. I think it's just a myth. The physics of it wouldn't make sense.