| The Craftmans Shop > New from Old |
| Resurrection of a CFEI 100 KVA Induction Furnace |
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| hermetic:
They look good, a larger version of the HW reservoir exchanger in the horrid combi boilers. I think you will heed to filter your borehole water to keep from debris clogging. It is all coming together! Phil. |
| awemawson:
Yes definitely some form of filter Phil even if it's only a very fine mesh - suggestions welcome :thumbup: This morning the last half of the foundry floor was due for its last coat of paint so that went down first thing. I had to start a second tin, and the colour was distinctly more 'elephant' than 'blue grey' but I don't suppose that it matters much :clap: While the paint was drying I put Phil's excellent suggestion to start with a needle scaler on the manhole castings into effect. It hadn't occurred to me for some reason, and I have to say for this application it was much less hassle than setting up the big Hodge Clemco, and made less mess. I got this needle scaler probably 30 years ago when I stripped all the paint and bondo off my Bridgeport before repainting, and I must say it's excellent. For this job I used the coarse needles - the Bridgeport got the fine ones ! It took perhaps 90 minutes to do the cover so not too bad at all. I still have to do the frame, but I came in to have a bit of a rest and upload this. As is often the case, the casting revealed a bit of the construction of the original pattern, screw heads showing in the metal. No doubt the pattern would have had those heads puttied and painted, but in use the putty plug has fallen out. |
| russ57:
It seems to be often the case that a whole series of roadblocks seem to all collapse at once and significant progress suddenly appears... A week ago, no chiller, no water, no heat exchanger. Now you just need a little pump and filter and you could be melting metal... -Russ |
| nrml:
If you are going to be storing the water in IBCs, Alum treatment might be more efficient and hassle free than filtration. |
| hermetic:
NRML may have a good point there! it all depends on the amount of suspended solids in the water after the borehole has pumped clean. I have a rainwater reuse system on the workshop which is based on an underground brick beehive cistern , probably of pre 1900 origin, which is fed by the roof water which contains leaves, bird lime, and the cidery residue from my neighbours apples which fall onto my roof! I am using a 1" pump with a foot valve which is suspended from a float about a foot below the water surface. the pump pushes water through a standard water filter. I clean it only occasionally, but it never seems to clog up. With this type of filter housing a wide range of different cartridge mesh sizes are available. |
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