How are cooling your p.d. Condenser?

[Rossey]

I'm going make myself a pd condenser,

I'm going to use a water butt and a pump.

But what type of pump?

I have seen a pump on eBay, item 151034773368.

It says 500gph that's a us gallon but still can't be that powerful?

[gerard b]

I think most of us use just an ordinary old central heating pump Rossey, mine is more than adequate anyway.

[julianf]

Pump looks ok, but is 12v, which may be an issue. 

Central heating pumps are often free, and will do the job fine, esp if, at any point, your coolant stops being as cool as you might like (ie if the tank overheats, it wont hurt a CH pump)

[Rossey]

Didnt think a ch pump would be powerful enough.

Well that makes it cheaper.

Also when crimping the pipe how much gap do you leave?
I read on one site 1/16th of an inch which I work ou to be 1.6mm is that right, with a spacing of 1" between crimps?

[Julian]

Didnt think a ch pump would be powerful enough.

Well that makes it cheaper.

Also when crimping the pipe how much gap do you leave?
I read on one site 1/16th of an inch which I work ou to be 1.6mm is that right, with a spacing of 1" between crimps?

Will you be at Chugs BBB on the Saturday?  If so I can bring the press pictured on the wiki ... you'll need to provide the 15mm copper obviously.

[Julian]

If you crimp it yourself, forget measuring stuff, just crimp the tube to a point where it's a loose fit inside the 22mm copper tube.

[Rossey]

Didnt think a ch pump would be powerful enough.

Well that makes it cheaper.

Also when crimping the pipe how much gap do you leave?
I read on one site 1/16th of an inch which I work ou to be 1.6mm is that right, with a spacing of 1" between crimps?

Will you be at Chugs BBB on the Saturday?  If so I can bring the press pictured on the wiki ... you'll need to provide the 15mm copper obviously.

Erm unsure at the mo as the wife's expecting any day now.

I have a press same as yours at work anyhow.
Cheers for the offer tho

[therecklessengineer]

A C.H. pump is easily powerful enough. I used a washing machine drain pump on my first plant - that worked fine as well.

[Rossey]

I've just had a play around with a scrap bit of pipe, two bolt and a rubber mallet



Not bad if I do say myself lol

You crimp it much to fit in a 22mm pipe.

Would it be better in a 28mm pipe and reduce it to 22mm each end?

[oakwoodtv]

I use a C/H pump its a three speed pump and run it on the slowest speed if the
pipe at the bottom of the PD is getting warm up the speed a notch   

[Tony]

I use a little fish tank pump, they're not powerful by any stretch of the imagination but they work a treat and are low energy.

[julianf]

Didnt think a ch pump would be powerful enough.

Well that makes it cheaper.

Also when crimping the pipe how much gap do you leave?
I read on one site 1/16th of an inch which I work ou to be 1.6mm is that right, with a spacing of 1" between crimps?

Will you be at Chugs BBB on the Saturday?  If so I can bring the press pictured on the wiki ... you'll need to provide the 15mm copper obviously.

If i make it this year, id very much like a go on your forming jig - for a long time now ive been meaning to make a multicore unit (where the postions of the crimps are more important, due to the need to tessilate) but not gotten arround to it, for the time it would take to make up a jig etc!

[Julian]

Didnt think a ch pump would be powerful enough.

Well that makes it cheaper.

Also when crimping the pipe how much gap do you leave?
I read on one site 1/16th of an inch which I work ou to be 1.6mm is that right, with a spacing of 1" between crimps?

Will you be at Chugs BBB on the Saturday?  If so I can bring the press pictured on the wiki ... you'll need to provide the 15mm copper obviously.

If i make it this year, id very much like a go on your forming jig - for a long time now ive been meaning to make a multicore unit (where the postions of the crimps are more important, due to the need to tessilate) but not gotten arround to it, for the time it would take to make up a jig etc!

Ok, no problem, bring however many tubes you need.  Just remind me nearer the time just in case I forget!

Pumpwise for my condenser, I have free use a truly massive pump owned by the water company!

[Jamesrl]

I use a 60ltr butt and  Ch pump with Bong cooler thrown in, works for me.

[Julian]

I use a 60ltr butt and  Ch pump with Bong cooler thrown in, works for me.

I've seen it in a dress, I'd say your butt was some what bigger!