Quote Originally Posted by CedricFP View Post
This looks more specifically for dual loop setups. I wonder if the water equalises in temperature more as a single loop with two rads because the water is essentially "shared".
Ding Ding Ding, we have a winner. This is the problem with this reservoir. It is not setup for dual loops. Even if it did have a divider, the two water temps would equalize through heat transfer and void the purpose of dual loops.

I say this is not a good top. No good for series, no good for dual loops.