The ebay pump will do it andy, but its A) a lot of £ (I think mine was only £25 unused from ebay) and B) it may have been used to transfer aggeressive photographic chemicals, although a new water jacket would probably solve this.
I also think it's a bit underpowered. 12L/min is rated with zero head. (i.e. absolute max flow) Allowing for say 1.5m head, pumping will be down to perhaps 9lit/min. it will do it, but I think holding out a while will get you a better pump. Try ebaying now an again for 'totton pump' thats what ive got. they are UK made so spares are no problem.
You are a brave man DAAB using that toolstation pump for beer.!! Good luck!!
If you do need to transfer/recirculate cleaning fluid, you could always use an aquarium pump. they are dead cheap and quite powerfull for their size. Also waterproof so no chances of being '..ZZZZzzzzt'ed!..'
JC
Counterflow cooler
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Andy
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James - yeah, I'm going to pass on the pump. It is billed as "new" so there shouldn't be issues with chemicals. But the ebay price is exclusive of VAT *and* it's 24v so I'd also need to buy a suitable PSU - the costs start to mount...... I also hear what you're saying about the throughput given a head of 1-2m.
I've got an immersible aquarium pump and plan to use that for recirculating cleaning liquid through CFC etc etc.
I've got an immersible aquarium pump and plan to use that for recirculating cleaning liquid through CFC etc etc.
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Andy
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DAAB - I tested on nowhere near full flow as the cooling water output was just the copper T piece with a short stub of 15mm copper in it, positioned over a bucket. Full flow would have flooded my kitchen 
Now I've got hosepipe and stuff I'll do a full flow test.... I reckon that 7m would do the job, possibly 5m but that might be pushing it.
Edit: You might like to consider a ball valve on the cooling water inlet to tweak the flow, mine was virtually fully shut and still providing adequate cooling.
Now I've got hosepipe and stuff I'll do a full flow test.... I reckon that 7m would do the job, possibly 5m but that might be pushing it.Edit: You might like to consider a ball valve on the cooling water inlet to tweak the flow, mine was virtually fully shut and still providing adequate cooling.
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James
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BlightyBrewer
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Nice!
I've got an immersible aquarium pump (tenner off ebay) and intend to dunk this in a container of steriliser and let it circulate the steriliser through the copper. Then dunk the pump in a container of fresh water to flush the steriliser out. Tried it yesterday and works well.
I'll perform this process before and after a brew session.
I was also thinking of circulating some of the boiling wort through the copper near the end of the boil and then returning the wort back to the boiler.
Would be interested to hear what jim does or if DaaB has any ideas...
I've got an immersible aquarium pump (tenner off ebay) and intend to dunk this in a container of steriliser and let it circulate the steriliser through the copper. Then dunk the pump in a container of fresh water to flush the steriliser out. Tried it yesterday and works well.
I'll perform this process before and after a brew session.
I was also thinking of circulating some of the boiling wort through the copper near the end of the boil and then returning the wort back to the boiler.
Would be interested to hear what jim does or if DaaB has any ideas...
Nice work, BB! Apart from the compression fittings it bears a striking resemblance to mine (well it's green with a yellow hoselock fitting, anyway ).
I pass about a gallon of hot water though it (just from the hot tap) then, when it's time to chill ( B) ) I pass a small amount of hot wort through before I switch on the cooling water. I rely on the heat sterelising the pipe.
).I pass about a gallon of hot water though it (just from the hot tap) then, when it's time to chill ( B) ) I pass a small amount of hot wort through before I switch on the cooling water. I rely on the heat sterelising the pipe.
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BlightyBrewer
Sterilizer....are you talking about VWP? I'm not sure bleach should be used with copper or brass. Here is what Palmer has to say on the subject....
QUOTE The chlorine and hypochlorites in bleach cause oxidation and blackening of copper and brass. If the oxides come in contact with the mildly acidic wort, the oxides will quickly dissolve, possibly exposing yeast to unhealthy levels of copper during fermentation.
Saying that, I'm sure the short contact time wouldn't make much difference?
QUOTE The chlorine and hypochlorites in bleach cause oxidation and blackening of copper and brass. If the oxides come in contact with the mildly acidic wort, the oxides will quickly dissolve, possibly exposing yeast to unhealthy levels of copper during fermentation.
Saying that, I'm sure the short contact time wouldn't make much difference?
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BlightyBrewer
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James
QUOTE (BlightyBrewer @ Jan 15 2006, 08:09 PM)Yeah, I don't think it would do much harm over the short contact period, and if you rinse well then there would be no problem I'm sure.
Spot on. You are unlikey to get corrosion problems with a contact time of 5 mins or so.
Jims idea of running hot worth through is quite a good idea too. The thing with a counterflow is to make sure you ALWAYS rinse it out with water STRAIGHT after using it..otherwise you are asking for bacterial infection. That will keep it clean inside, so you really only have to worry about sanitation when it's time to be used.
JC
Spot on. You are unlikey to get corrosion problems with a contact time of 5 mins or so.
Jims idea of running hot worth through is quite a good idea too. The thing with a counterflow is to make sure you ALWAYS rinse it out with water STRAIGHT after using it..otherwise you are asking for bacterial infection. That will keep it clean inside, so you really only have to worry about sanitation when it's time to be used.
JC