are you going to add something to help align a cascade when you put one back to gether after a clean even if it's a small mark on one side ?
when i clean mine i can never be sure even when there is a bit of water inside you still cant see it that well.
good luck with the xxx do you think you can get temps any lower with the amount that the tim will effect your rise over ambient ?
i remeber you saying that you are very close with the original cascade anyway
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Originally Posted by Cathar
The hypodermic needle's 304/316 Stainless Steel (as with all stainless steels) will rust if left sitting with still water in contact with it. What this means is that once the block is installed, you basically cannot then take it out and leave it sitting about unless taken a good deal of care to dry it totally.
One of the materials we're looking at making the middle plate out of is 420 Stainless Steel (commonly used for cutlery), but again has the same issues with rust if left damp. The plate would be machined, drilled, and EDM'ed into a single solid piece.
The corrosion process is also accelerated if the steels are left sitting in damp contact with copper or silver, possibly leading to blocked tubes. As long as the water is flowing, it's all good.
I'd like the blocks to be fairly maintenance free in terms of corrosion, without the need to pull them apart and dry them out every time the block is removed from the system.
We're still trying to see if we can conventionally machine the middle plate. The first material we tried was too brittle.
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