- Joined
- Jan 24, 2015
- Messages
- 1,543
- Reaction score
- 359
- Location
- West Virginia
- What state or country do you live in
- West Virginia
Getting ready to plumb my Modular Marine 2400 GPU overflow, and was wondering if I need a shutoff valve on the secondary drain? I have a gate valve for the primary. Post pics for inspiration, thanks!

