question on new still design

[tauren58]

I am converting an old stainless steel pool filter into a pot still. I have a question about leaving a crevice in the boiler that will be hard to clean. this unit comes apart in the middle and is held together with a clamp and rubber gasket. My plan is to weld the top and bottom together at the flange in the middle. here is an example of what it looks like. when we weld the flange in the middle, there will be a crevice around the body that will be hard to clean after runs. I plan to have an opening at the top large enough to reach in and scrub with a brush. But is it okay to have a crevice in a boiler or is that a no no for cleaning? I plan to only run liquid wash, without solids.

I have scoured the forums but could not find an answer to my question. Thanks

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