Rain Dog
Senior Member
- Joined
- Feb 9, 2016
- Messages
- 184
- Location
- United States
- Vessel Name
- Rain Dog
- Vessel Make
- Grand Banks 42 Classic
Trying to fix some creative plumbing on my freshwater system. There is some copper pipe connected with a compression fitting to a male threaded fitting. I want to replace that with a hose barb. The male threaded fitting is close to 1/2 NPT but slightly smaller.
I figured it was British (since everything else on my boat seems to be), so I bought a 1/2 BSPT Female x 1/2 NPT Male adapter. That seemed to fit pretty well, although the threads were slightly loose. I attached it and turned the pressure on and it leaks.
So now I am stumped. What fitting is the same size as BSPT but with different threads? Or maybe the same threads but just slightly larger? Or maybe I just put 5 or 6 layers of Teflon tape and call it a day?
I figured it was British (since everything else on my boat seems to be), so I bought a 1/2 BSPT Female x 1/2 NPT Male adapter. That seemed to fit pretty well, although the threads were slightly loose. I attached it and turned the pressure on and it leaks.
So now I am stumped. What fitting is the same size as BSPT but with different threads? Or maybe the same threads but just slightly larger? Or maybe I just put 5 or 6 layers of Teflon tape and call it a day?