Showers Explained
There are two main types of mixer showers or mixer valves available, the first type lam going to discuss is the buried valve type. A buried valve mixer shower is the type where the valve is buried into the wall. I have come across a few problems with this type of mixer valve. One of the biggest problems with this shower is in the installation. When installing a buried valve shower you have to cut a hole into the brick work to accommodate the valve.
Some of these showers need a 100mm deep hole, this is not a problem if you are fitting the shower to an external wall because the wall is a double brick coarse which is at least 250mm thick. The problems start when you try and fit one of these showers to an internal wall which is only 100mm thick single coarse. When you are cutting the hole there is a good chance of going straight through the wall into the next room. If you are planning to buy one of these showers check the wall that you plan to mount the shower on and also check how deep the shower valve is.
The other problem is when the shower is buried it is hard to repair if it goes wrong, on some models the tiles around the shower would have to be removed to gain access to the vale.
The best option in my opinion is to use a surface mounted valve as apposed to the buried valve type, there is a lot less problems with the installation and they are a lot easier to replace or repair if things go wrong. Triton showers make both types of mixer showers and a couple of the Triton showers models have the option to be surface mounted or buried.
Showers for areas with low water pressure.
If you are unlucky enough to live in a area where the mains cold water pressure is to low for an ordinary electric shower unit, and you don’t have a combination boiler fitted, then the options for a shower are limited to two types of shower.
Option one is an electric power shower, this is a shower with a on board pump. The only problem with an electric power shower is that they don’t heat there own water, the unit relies on the stored hot water that is produced by the immersion tank or boiler. If you have a large family and the shower is in daily use then this can be a problem. After the shower has been used a couple of times the hot water will run cold, and you will have to wait for the water in the immersion heater to reheat before you can use the shower again.
The other option is a pumped electric shower, pumped electric showers operate on the same principle as an ordinary electric shower, in the sense that they heat there own water. This type of shower will not run out of water and the pressure will be constant as there is an on board pump that is fed from a tank in the loft or attic. This type of shower is ideal for low water pressure areas and for every day use.
The installation is exactly the same as an electric shower, but the plumbing side is a little different. If you are going to buy one of these showers have a qualified electrician carry out the electrical work and a plumber to do the plumbing work.
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