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Old 10-05-2010, 06:41 PM   #111
Hermit
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Quote:
Originally Posted by JonW View Post
Which pumps are you specifically referring to? It almost sounds like you are saying this about your own pumps, but I don't think that is right.
Yeah. Just some poster using chuggerpumps to NOT use.... I'd have to think he would be speaking of his own product.....

 
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Old 10-05-2010, 06:58 PM   #112
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I think he was referring to the LG pumps mentioned earlier, but his post isn't real clear.

 
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Old 10-06-2010, 01:32 AM   #113
chuggerpumps
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Its true ...we have made the pump 1st prototype...trying to make it affordable as possible for all home brewers in Stainless Steel as it should be ...after all you are consuming what you brew!!! we plan on further modifications for the 2011 year

 
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Old 10-06-2010, 01:46 AM   #114
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Apply a 1/12 minimum to 1/8 HP Mag drive motor with your stainless pump having a large inlet at 90 degree angles between the inlet and outlet for easy "burping" to clear the air pockets. Add to this an impeller design that will reprime itself better when small air pockets enter the pump vs instant loss of prime like "BRAND "X" "pumps.
Within a resonable price we can afford you'll have a winner. Applying these ideas with a successful pump you'll have a problem keeping up with demand.

 
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Old 10-06-2010, 01:53 AM   #115
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FWIW, I've run my Chugger pump head a LOT now. My mashtun has all but been confiscated for use as the household sous vide! I ran a lamb roast in it for 24 hours straight, from Sunday night to Monday night just this week as a matter of fact.

The 'wide open throttle' issue seems to have resolved as well, whatever was causing that.

 
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Old 10-06-2010, 03:56 AM   #116
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Interested to see how this turns out. I'm leaning to LG pumps. The heads on the chugger pumps just look too cheap for me to believe the pump won't crap out in a year.

 
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Old 10-06-2010, 01:06 PM   #117
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Little Giant only makes Polypro Plastic pumps I strongly reccomend NOT using Poloypro...plasticizers tend to leech out over time especially with high temps. Email me your address I wil send you a Chugger SS pump free to evaluate would appreciate the feedback as we a re continuing to improve this product. [email protected]

thanks

 
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Old 10-06-2010, 01:18 PM   #118
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Have you considered making your pump with 3/4 inlets and outlets? I think you could find a market for them. When i was looking for pumps I had a tough time finding something that would work. I ended up going with a dayton centrifugal pump with stainless head. I could not find a reasonable product with a magnetic head.
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My build thread. Compact Single Tier!

 
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Old 10-06-2010, 01:24 PM   #119
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Quote:
Originally Posted by chuggerpumps View Post
Little Giant only makes Polypro Plastic pumps I strongly reccomend NOT using Poloypro...plasticizers tend to leech out over time especially with high temps. Email me your address I wil send you a Chugger SS pump free to evaluate would appreciate the feedback as we a re continuing to improve this product. [email protected]

thanks
http://en.wikipedia.org/wiki/Poly%28...ene_sulfide%29

That's not what the above says about the Ryton pump heads LG uses.

ie "Maximum service temperature is 218 C (424 F). PPS has not been found to dissolve in any solvent at temperatures below about 200 C (392 F)."

I've been using an LG pump with a Ryton pump head for about five years with no problems whatsoever.

 
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Old 10-06-2010, 01:35 PM   #120
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Ryton is Known for its chemical compatiblity ...defineitely not food grade and WILL leech plasticizers slowly over time ...look on the FDA site it is not approved for food use Notice the words Sulfides and synthetic fibers ????..I have been doing this a long time and know that the Ryton will work ..but it is not a good choice. Wikipedia is by NO means a reliable resource on descriptions ..I have been working with Ryton pumps in the chemical industry for over a decade. One of the reasons I got involved in brewing was when I saw a friend using a mechanically sealed plastic pump from Grainger ...

 
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