I'm replacing a bath with a shower in my ensuite. I've exposed two 22mm H/C pipes which previously fed the bath and the ensuite basin. These will eventually feed the shower and basin (nothing else).
The shower I'm trying to fit - a Mira Atom ERD - requests 1/2 BSP inputs which it then converts via a couple of offset adapters to 3/4 inputs to the bar itself.
The simple thing I can think of is to tee off the 22mm pipes with 15mm and use a pair of 15MM X ½ BSP couplers to join to the offset adapters
The questions I have on this:
The shower I'm trying to fit - a Mira Atom ERD - requests 1/2 BSP inputs which it then converts via a couple of offset adapters to 3/4 inputs to the bar itself.
The simple thing I can think of is to tee off the 22mm pipes with 15mm and use a pair of 15MM X ½ BSP couplers to join to the offset adapters
The questions I have on this:
- What's the point of these offset adaptors provided with showers? Why go to 3/4 BSP via 1/2 BSP? Is there a reason they are offset rather than straight?
- Given I have 22mm pipes from the boiler and mains am I better off not reducing to 15mm? Even if just for a foot or so? If so is there a product available which will allow me to bypass the adapters and go straight from 22mm to 3/4 BSP on the bar.
- I've been reading on pressure and flow rates and I'm not 100% sure I understand everything, but it seems to me that reducing to 15mm will reduce the flow (and maybe the pressure marginally).
- Combi boiler pressurised system.
- I haven't measured the pressure in the system - but the mixer shower in the adjacent family bathroom performs fine.
- Shower installation instructions: http://resources.kohler.com/plumbin...erd-bar-valve-installation-and-user-guide.pdf
