That was my immediate thought as well.
The 16BL30 is my standard brushless ESC, following a recommendation back then from Canabus, our Tasmanian friend who seems to have gone AWOL🤔
Mike: the full name to look for is Hobbywing Quicrun 16BL30.
Why do you think you need water cooled for a 30A ESC?
What is the model you are putting it in?
The Quicruns are robustly built, with heat sink and waterproof.
Attached is the user manual supplied with the ESC.
Surprise surprise it's in understandable English😀
First thing to do is set the Running Mode to Option 3; Forward/Reverse (NO BRAKE😊)
I like the other programming options as well; e.g. Timing - you can play with that to obtain more torque or more speed (rpm) as you wish for a particular model😁
Punch; i.e. start acceleration; can be adjusted from Soft to Hard. Soft prevents the scalded cat starts that brushless motors are prone to😉
Hope this helps.
Cheers, Doug 😎
PS; I've long since written HobbyKing off as a 'preferred supplier'.
Too many disappointments with delivery times or unexpected import dues🤔
I buy my HobbyWing and Deluxe Materials stuff (amongst others) from Krick here in Germany.
When they say online they have something available they mean it and deliver in 1 to 3 days😊