Advice on my 1st liquid cooling build

PSYKOTIK

Distinguished
Jan 28, 2012
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18,510
I am looking at doing my first liquid cooling build and I wanted to know if my basic build idea was sound. I am looking at using a ThermalTake Tower 900 Snow Edition as the case and going with a 400mm Dual Helix reservoir mounted on the left side. I am planning on using distilled water and 1 or 2 kill coils. Is a coolant strictly needed, or will distilled water and kill coils work? I may add a second 400mm Dual Helix reservoir on the right side at a later date. I would then split the system into 2 loops, one for the CPU and one for the GPU. My biggest concern is will the reservoir fit, If needed I can switch to a 250mm but would prefer the 400mm. Any advice would be greatly appreciated. Below is my build currently.
https://pcpartpicker.com/list/r2w8VY
 

itzmejusting

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Aug 30, 2017
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510
also get the enthoo pro m in that case you can fit 2 pump/resovior com combos or 1 pump 1 resovoir also u can fit a 480 mm rad in the front ans a 240 at the top and if u really want a 120 mm at the back also just get a 32 gb kit of ram dont mix and match modules
 

PSYKOTIK

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Jan 28, 2012
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18,510

I personally prefer the look of the ThermalTake case over the Enthoo. My biggest concerns are if the 400mm reservoir will fit or do I need the 250mm model? That and if silver kill coils will be sufficient, as I'd like to stay away from coolant mixes if possible.