When we plan the installation of a new bathroom, we can choose to use for distribution some brass manifolds, with their pro’s and con’s compared to a connection in series typical of installations carried out with galvanized pipe or a rigid one such as the PPR (Pipe Penetrating Radar) pipe.
One of the merits of
brass manifolds is a better distribution of the pressure and a reduced load loss, in the event of simultaneous use by more than one user. That is due to the configuration of the system. In fact, I no longer have a pipe in which the last user is affected by what all the previous ones have consumed, but I have a common starting point at a constant pressure and piping sections of practically very similar lengths. We should also bear in mind that, in respect of brass manifolds with a shut-off valve, we may isolate the single section to carry out any maintenance works without precluding use of the rest of the bathroom.
Here is the demerit: when we choose to install brass manifolds, we must take into account their cumbersomeness, not a marginal problem, both from a building and an aesthetic viewpoint. Their installation, in fact, normally envisages the use of boxes to be accommodated in the wall, that are neither easy to hide and that, in a bathroom, might give rise to aesthetic problems.
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