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Trojan Granada Bath 8mm Thick Acrylic With Grips 1500mm, SALE PRICE
If you want a bath/shower mixer with a showering handset, then you must determine the distance from the foot of the cold water storage tank to the height at which the handset will be used, not the height of the tap, or the handset when it rests in the support.
You also need to be aware that elongated pipe work runs rapidly use up any pressure inside a system, so if your taps are a long way from the cold storage tank then you will want to lessen the calculated pressure to take account of this.
Once you have a good idea of your water pressure then you need to verify that whatever taps you are looking to buy will work at that pressure.
As a rule of thumb many designer taps come from Europe where the water systems have superior pressure than in the UK and these taps wont work if you have very low pressure.
Designer taps made specifically to work on low pressure systems are normally more expensive and the retailer will highlight the fact that the taps are suitable for low pressure systems. If it doesn't say specifically that the taps will work with low pressure then assume the worst and don't buy without asking the retailer to verify the pressure requirements.
Question 3: What is the operating mechanism of the tap ?
Ceramic disc and spindle refer to the two alternative ways that the inner mechanism of a tap can operate.
Ceramic disc technology is usually used on more costly taps, as they function better and last longer. When the lever is turned, two ceramic discs are parted opening the valve and allowing the water to pour.
The traditional spindle design is commonly used on inferior quality, cheaper tap designs. The tap has a spindle through the core, with the valve seat attached via a screw thread. A standard tap washer is fixed to the end of the valve seat. As the knob is turned the spindle rotates and the screw thread moves the valve seat up and down to adjust the flow of water