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Polly Steam Plant
| Joseph Harland 1 | 02/03/2020 05:34:10 |
| 13 forum posts | Hi All, I'm in the middle of making a copy of Tubal Cain's POLLY. Do I need to remove the remnants of silver brazing flux from inside the boiler and if so - how? Joe Harland |
| mick H | 02/03/2020 07:56:55 |
| 795 forum posts 34 photos | It will dissolve when you pickle and rinse it. Mick |
| Joseph Harland 1 | 02/03/2020 10:27:48 |
| 13 forum posts | Thanks Mick, I was worrying about how to rinse out the inside - there are only 2 small openings. Joe |
| Norman Billingham | 02/03/2020 11:57:56 |
| 56 forum posts | We teach students on our basic course at SMEE to make Polly. So far I think we've had about 120 made. We use copper tube to make the boiler and just give it a wash through with hot water to remove flux residues after brazing in the end plates. We've never had a problem. It's actually more important to wash thoroughly when you've used soft solder with Bakers fluid flux as in soldering the firebox to the base - chloride residues from the flux can be corrosive to steel. Good luck with the build |
| Joseph Harland 1 | 05/03/2020 06:04:19 |
| 13 forum posts | Thanks for the advice Norman (and Mick), I am carrying on. |
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