water into house, what do you think of this

[redtop]

Now I know I have put in 2 drains that drain the same pipe... But basicallyy you can see 32mm MDPE, stop tap, check valve, pressure reducing valve and then it splits, one will feed external taps and the other will go off into internal house plumbing (going to use Hep2O wherever possible).  Quick question, anything wrong with what I have done, and at the moment there is nowhere for the water pressure past the PRV to go to when iot heats up from the sun / etc.  Do I need to add in a pressure release valve, tank or will it be fine when it has the additional pipework added and has somewhere to expand to?

 

cheers yall

[Russell griffiths]

Are you using second hand pipe, looks very dirty, I’m no professional with soldered joints but I would give that lot a good clean before doing my joints. 

[redtop]

soldering that would be fun :-) been exposed to the elements since soldered, but yes it was clean before soldering!

[Russell griffiths]

Just now, redtop said:

soldering that would be fun ? been exposed to the elements since soldered, but yes it was clean before soldering!

Ok sorry, I thought it had been done just now. 

[redtop]

5 minutes ago, Russell griffiths said:

Ok sorry, I thought it had been done just now. 

lol, no although I did forget to turn the stopcock off and open a tap one very hot and sunny day and the pressure in the copper got sooo high it only blew the bloody tap of ? soldered joints held ok lol.

 

Anywhoo, do I need to worry about pressure build up downstream of the PRV??