Visualizer wrote: January 10th, 2021, 8:07 pm May be another 3-4 months down the line I can tell my practical experience with these valves.

@Visualizer, how is your experience so far. Do you think anything needs to be changed?

3. Yes if you need larger showers and body jets you need pressure boosting pump.
So while renovating keep 3 water lines from roof
1. 2 inch line for flush
2. Pressurized cold water line
3. Pressurized insulated hotwater line from solar water heater / heat pump.

Single pressure pump can service ...

Yes it will work.. any reason you don't want to get provision of solar water heater ? In my e )opinion if suppose you are getting the lines laid a provision of solar heater or heatpump water heater will not heve too much incremental cost ( you can fit them later also of you have pipes in place ...

1. No a 2 inch dedicated line is needed for flush valve . Also the water head ( height between FV location and bottom of water tank) should be around 15 feet. Use 40mm FV and don't use 32mm as height required for 32mm is 10m or 33 feet approx.

2. Pressure pump should only be put for cold and hot ...

3. Yes if you need larger showers and body jets you need pressure boosting pump.
So while renovating keep 3 water lines from roof
1. 2 inch line for flush
2. Pressurized cold water line
3. Pressurized insulated hotwater line from solar water heater / heat pump.

Single pressure pump can service ...