it's really not an easy layout to implement if you aren't planning it all out to ensure compatibility. i'll list the fittings off, but know that this works because a) i am in the 3-slot gpu config, b) i'm using a 25mm radiator that allows for me to mount fans between it and the motherboard (creating space for the fittings), and c) i'm using a motherboard with a non-obtrusive heatsink + io cover on the side vrms/no heatsink on the top vrms/8-pin + fan connectors aren't in the way (8-pin is still rough, but obviously it works). if you deviate from this in any way (such as going with the TX radiator, which requires you to mount the fans above it), and it doesn't work out, then that's on you homie.Would you mind listing the connections you used in your loop and how many of them? I really like this setup. Sorry for the handholding, I've never custom looped and am not entirely sure what is needed.
note that you also don't necessarily have to use these fittings in this exact manner (and you may want to use barrow instead of bitspower, where possible, to save money), i just had a bunch that i didn't want to go to waste, so i wound up working around them-
1 - https://shop.bitspower.com/index.php?route=product/product&product_id=1896
2 - https://shop.bitspower.com/index.php?route=product/product&product_id=1815
3 - https://shop.bitspower.com/index.php?route=product/product&product_id=1921
4 - https://shop.bitspower.com/index.php?route=product/product&product_id=1718
5 - https://shop.bitspower.com/index.php?route=product/product&product_id=1769
6 - https://shop.bitspower.com/index.php?route=product/product&product_id=1891
7 - https://shop.bitspower.com/index.php?route=product/product&product_id=2549
8 - https://shop.bitspower.com/index.php?route=product/product&product_id=1893
9 - https://shop.bitspower.com/index.php?route=product/product&product_id=3956
10 - https://shop.bitspower.com/index.php?route=product/product&product_id=1937
11 - https://shop.bitspower.com/index.php?route=product/product&product_id=1891
12 - https://shop.bitspower.com/index.php?route=product/product&product_id=1815
13 - https://shop.bitspower.com/index.php?route=product/product&product_id=1923
tubing used - https://www.mcmaster.com/5119K88/
and then i have another https://shop.bitspower.com/index.php?route=product/product&product_id=1896 that i use to screw into the t-block to drain/fill with
best of luck if you do decide to try this though.