- Joined
- Jun 1, 2018
- Messages
- 154
I use mostly class 0 hard drawn copper for external,class 1 copper for wall chases and class 2 copper for underground and in concrete. I use mainly solder as its reliable but also compression fittings. We also use pex pipe with compression fittings but it needs inserts otherwise without doubt it will fail.We also use crimped fittings and John Guest fittings.Copper is best and I prefer solder fittings.