Monoblock Taps

[swarfega]

What is the ACTUAL physical difference between a 0.5 bar monoblock mixer tap, and a 0.1 bar monoblock mixer tap?
What would make a 0.1 bar mixer tap perform better than the current 0.5 bar we have installed? (hot water is merely a trickle, there is almost no mix - it's either powerful and cold, or trickly and hot. Warm is not an option). I wonder whether a 0.1 would help?

 

[Best]

The physical differences are a monobloc tap suitable for lower pressure will tend to have less restrictive orifices - diameter of holes in main bodywork & the neck will have a wider opening. Also remember if the tap has flexi hoses or ceramic disc works, then these will cause further restriction to flow. Flexis have very small bore & ceramic discs have an opening of less then half of their diameter.
Any diffuser/ airator at end of neck can severely restrict flow.
The mixer taps nowadays have seperate how & cold through their necks, usually by a very small pipe in the middle for the hot. That is partly why the gravity hot on sinks can be very poor flow. Cold mains has no problem with flow.

 

[Plumbstar Tom]

about 500%

0.5 is five times that of 0.1 so could be quite a bit

If you are on gravity fed systems, expect poor flows from a 0.5 minimum pressure mixer

 

[swarfega]

OK I will take the plunge and source a 0.1 bar mixer. Any recommendations? There doesn't seem to be so many about. £50 mark would be ideal. My current mixer is a UTY375 and would dearly like it to look similar!! Might be asking a bit much...