I have a Koolance 402x2. I'm going to be setting up dual pumps to pump as a team in one single loop. I have the Koolance instructions which state to use no plug in the side but make sure the 180 degree connector is attached:
https://koolance.com/files/products/manuals/manual_rp-402x2_d100eng.pdf
However, in Martin's review, I'm pretty sure he is stating to use the long plug when doing two pumps for one loop:

I'm a bit confused at this point. Do I use the long plug or no plug?
https://koolance.com/files/products/manuals/manual_rp-402x2_d100eng.pdf
However, in Martin's review, I'm pretty sure he is stating to use the long plug when doing two pumps for one loop:

I'm a bit confused at this point. Do I use the long plug or no plug?















