I have already made up the Tee connection to branch off from water main. There is isolation valve at end of the copper pipe. Its position is ready to drill through the wall. I am about to buy the materials and finish the job following: I would be very much appreciated if you could have a look. Any commons will be great. Thanks
Materials (diameter is 15mm):
[b]Self-cutting valve with check valve,
Wall plate elbow
MDPE or copper pipe
Drain off valve,
Fittings (90 degree, etc),[/b]
I also have few questions:
[b]What is different between MDPE and copper pipe? Can I use MDPE pipe outside house (4 meter outside)? If both of them do not resist low temperature (frozen pipe), which material shall I use to lag them?
Is the check valve the same as the non-return valve?
Do I need another stop valve after water main?
Do I really need drain off valve?[/b]
Thanks
