Read article : How to understand your water pressure system | Help & Ideas
Water pressure is measured in bar, with 0.1 bar equivalent to approximately 1.45 pa of pressure. With low pressure water systems, you’ll want to measure your water pressure precisely to find a tap or shower that will give you optimum flow.
Measure the height between the bottom of your water tank and the outlet of your tap in metres. You might find that this means measuring from your tap to your ceiling, and then from the floor of your loft to the bottom of the tank. Add these two numbers together. If there are floors between your kitchen and the loft, measure the height from floor to ceiling and add this number to the total. You don’t need to be really accurate here, but you’ll want to know the distance to the nearest metre.
Once you’ve got your measurement, use this table to work out your water pressure.
| Distance | Water pressure |
|---|---|
| 1 metre | 0.1 bar |
| 2 metres | 0.2 bar |
| 3 metres | 0.3 bar |
| 4 metres | 0.4 bar |
| 5 metres | 0.5 bar |
| 6 metres | 0.6 bar |
| 7 metres | 0.7 bar |
| 8 metres | 0.8 bar |
When you come to choose a tap or shower, you’ll find the water pressure it is suitable for will be clearly labelled, use this as an indicator of those which is work well in your home.
Water systems which operate at 1.0 bar pressure or greater are considered high pressure systems.
Those with a pressure less than 1.0 bar are considered low pressure.
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