Bathroom Checklist

A couple of the bathrooms I’ve done recently have had issues with the water pressure in the shower. It’s the first thing that the client comments on and the one thing they really want improved with the upgraded shower. But I have bad news for you. Sometimes it’s not the shower that’s causing the problem. Sometimes it’s the boiler.

When a system is plumbed the route that the pipework takes is the most direct that the structure of the building allows. But if that pipework was run by an owner three of four ahead of you and the bathroom has had changes made along the way, there’s no telling how many alterations to the original route have occurred – nor indeed the age of the boiler itself. The reason that’s important is because of technology. I can see head scratching, go with me, here.

fired earth style shot

fired earth style shot

As technical processes become more advanced and the making of bathroom metalware is done by precision instruments, the fittings available to us are a great deal more intricate. On the outside they look uncomplicated and streamlined but on the inside they have restrictor valves to adjust water flow rates and they need a certain amount of pressure to operate at their best. For something so comparatively small, the inside (the gubbins – one of my favourite words) is extremely high tech. And here is the problem. If you try and plumb one of these sensitive, modern belles to a boiler that is 10+ years old, you’re going to get a few generational differences. It’d be like putting your great aunt behind the wheel of a Ferrari.

The output of your boiler is designed to take both hot water and central heating activity, but it can’t adjust to the demands of fittings that are trying to second guess it. What I mean by that is if the fittings make allowances for the boiler output and it isn’t keeping up with the factory settings of the fittings, then the two components are out of sync and the end result is lost pressure. The thing to remember is that with current regulations, the factory creates a setting that inhibits the temperature – so you can’t scald yourself. Often this can’t be altered which is tough luck if you like a HOT shower! And even more annoying this is only apparent when the fittings change. So, you may have hated the old shower but the pressure may have been fine and with the new shower the pressure is awful – or much less hot than you had. The first option is to take out the restrictor valves, but this doesn’t really solve the problem because with every upgrade you do to your property, the boiler will have to supply the fittings.

tiled shower enclosure

As the designer, I’m often the person specifying the fittings and so I’m likely to be asked to sort this out. The problem is that often I’m not told about the boiler – because the clients don’t necessarily see it as part of the problem – but it definitely is.

If the work is done in stages, then the technology of each fitting (tap, shower, bath, radiator) will be step on step more advanced than the boiler – and the blame will be laid at the feet of the contractor that fitted the bathroom (or the radiators) not the boiler. But the workman has no control over regulations nor indeed the build quality or specifications of the metalware. This is something that should be factored in when you decide to make changes to your bathroom. If the boiler isn’t modern enough to have factory updates done remotely (the time now updates automatically when the clocks change, for example) then you’re likely to suffer with issues of compatibility when you do want to make changes. Yes, it adds money to the work being undertaken, but contrast this to how upset and dissatisfied you’ll feel when the bathroom you’ve been planning for months doesn’t meet your expectations. In that situation it’s natural to want to lay blame with the workmen, but with issues of compatibility between fittings and appliance, you only have two choices – live with it, or upgrade the oldest parts. And if you’re going to go to the trouble of having the work done, surely that should mean you’ve done your homework, you’ve researched the minimum requirements and understand the problems you could encounter if you decide to ‘take your chances?’

mother of pearl mosaic

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