Engine flush connector FIX

Gone Coastal

Member
Joined
Oct 26, 2023
Messages
18
Reaction score
5
Points
3
Model
Coastal Explorer 281
I’ve had a heck of a time with Grady’s flush connector. The o rings keep coming off and then won’t seal. Yes, I lubricate them. After trial and error, I found replacement o rings that fit and don’t leak. Off Amazon, they are 16mm OD and 2mm thick. The ID is 12mm.

I even broke down and bought a second adapter from the dealer (over $50) and it worked twice before the o ring stripped out. I was already planning on how I can rig up my own flush system that actually works and then decided I’d make this one last effort to find a different O-ring size. And it worked!!
 
McMaster Carr - try different o-ring sizes. No problem with my Melnor garden hose quick connects!

Melnor Hose Connect.png