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The Armitage Shanks Contour 21+ Single Lever Basin Mixer Tap with copper tails is an anti-vandal unit ideal for installation within any commercial or domestic space. It comes with extended lever handle making it particularly suitable for installation in any healthcare or disabled toilet room setting. If you're charging by the hour Seriously, installing sinks that are so thin they can't take a normal monobloc Yes they will work fine providing you are careful not to unscrew the tail whilst tightening the compression. The minimum pressure tap I have been able to find is 0.1 bar. It has M10 connections and the flexi tails included - but they look like they will still be restricting flow somewhat as the aperture of the tails is pretty small especially at the compression nut end. So I have been considering using some copper tap tails instead. I have also been searching for a monobloc mixer tap which has larger M12 connections for the best chance of maximising flow, however, I've not been able to find any... in fact you practically never ever see thread size included in specs!! I have very low hot water pressure in my upstairs basin mixer tap. Being in a maisonette there is hardly any head height from the tank (about 0.8 metres). However there is decent enough flow from the bath tap (separate hot & cold taps) which only slightly lower (a further 0.4 metres). This has led me to conclude that whoever fitted the tap probably didn't choose one suitable for a low pressure system.
The image above shows the tap at the top with the connection tails at the bottom ready to receive the hot and cold feeds. The 10mm feed pipes screw into the underside of the tap and are then machined out to become 15mm copper tails ready for the connection of 15mm feeds. These threaded bars should be fitted before dropping the tap through the hole in the basin. Only do them up as tight as you can by hand. If you use pliers or grips there is a danger you will damage the thread. There are no obvious restrictions being caused by the connecting pipework. I don't need to get it anything like mains pressure, but just enough improvement to avoid having to fit a pump. As it is now, I just measured a measly 1.71 l/m.Thanks, I appreciate the input. I didn't know that monoblocs were more restrictive than single taps. Copper tails, which are narrower where they go through the tail, increasing to 15 mm at the pipework connection end. Less restrictive than flexis, but no as good as 15 mm pipes. With the washer in place the nuts can now be tightened onto the threaded bar and this is where the DIY enthusiast struggles. Use a Box Spanner It is slid over the thread and the other end twisted tight by putting a nail or something similar into the hole and turning. Easy!
The Intatherm safe touch thermostatic basin mixer tap, designed for both domestic and commercial applications. A new stylish design featuring Inta’s proven anti scald technology a safe touch body and a self draining spout.
This is the one place that I save my pushfit connectors for. If it is possible I use a pushfit to connect to the tail. The ideal arrangement is to have two pushfit elbows to connect the tails to horizontal pipes (and then to isovalves etc). With this arrangement any future replacement can be accomplished in about 15mins. If anyone's had a similar problem perhaps you could advise? Am I on the right lines... or getting a bit carried away? I don't want to fit the new tap only to find the flow is still poor. I'd also like to exhaust all other options before fitting a pump on the whole hot water system. There is hardly any room under the basin, less under a bath and a kitchen sink is a nightmare! Plumbers on the other hand, carry a box spanner which is a long open tube with the correct size nut shaped hole at the end. My reason is that it makes replacement very easy and it is a more reliable method of connecting the tails than compression. When tightening compression it is all too easy to loosen the tail and cause a leak.
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