For your nearest branch

please enter your postcode below

Name*

Telephone*

Email*

Postcode*

Boilers

• Boiler Repairs
• Boiler Servicing
• Boiler Installations
• Gas Safety Certs

Central Heating

• Installations
• Power Flushing
• Radiator and Pipes
• Pumps and Valves
• Immersion Elements
• Underfloor Heating
• Commercial Plumbing

Plumbing Repairs

• Leaks and Bursts
• Showers
• Toilets
• Taps
• Gas Fires
• Blocked Drains

Plumbing Installations

• Bathrooms
• Refurbishments
• Unvented Cylinders
• Showers
• Appliance Installations

Saving Energy

• High Efficiency Boilers
• Solar Water Heating
• Heat Pumps
• Biomas Boilers

• Plumber West London
• Plumber North London
• Plumber Northwest London
• Plumber East London
• Plumber Southwest London
• Plumber Southeast London
• Plumber Greater London
• Plumber Middlesex

Water Softeners Overview

Water Softeners are used to treat hard water. They work by replacing the calcium and magnesium in the water with sodium. They may also remove a small amount of iron or manganese, but for high levels, it is not recommended.

Water Softeners will generally require a professional installation, and they are relatively expensive to both purchase and maintain

.
For hard water treatment you may wish to use a magnetic water conditioner as they are significantly less expensive alternative to water softeners. Although some people claim they don't work, there is a great deal of anecdotal evidence, and some scientific research, to suggest they are equally as effective as water softeners in treating hard water.

 

Water Filters

There are a number of methods of water filtration, each with varying degrees of effectiveness, and varying costs. The general purpose of filtering water is to improve the water's hygiene and aesthetic qualities. Some of the available water filters are described below:

Activated Carbon (AC) Water Filters

Activated Carbon Filtration is an established technology that works through absorption of the problematic compounds, primarily to remove taste and odour but systems will also remove some harmful contaminants. AC is a highly porous material with a very large surface area. Chemical pollutants are attracted to and held by the AC's surface. These water filters are best suited for the removal of organic compounds.

 

Ultraviolet (UV) Water Filters

UV Filters are able to kill the majority of bacteria and viruses in the water which passes through them. However, they won't remove chemical pollutants from the water. Also you should note that the treatment is ineffective outside of the treatment area, so water should be used immediately after it is treated.
 

Water Distillation (Water Distillers)

Water Distillation involves heating the water to boiling point and condensing the steam. Pollutants with a boiling point near that of water are hard to remove, but generally the distilled water is of a very high quality.
The major drawback to this method is that it requires a large amount of energy. Some people will also complain that the distilled water tastes flat (this is due to less dissolved oxygen).

 

Sand Filters

Sand based water filters have been used for over 100 years to treat waste water. They are generally used on a larger scale to treat a water supply for a whole community, and will be custom made. Most units require a constant flow of water to work correctly, and so wouldn't be suitable for well water treatment. However, recently a Canadian scientist, David Manz developed an intermittent unit. You can buy pre-built commercial units for home use which are typically used with swimming pool pumps.

Reverse Osmosis

In water filter terms, reverse osmosis (or hyper-filtration) is the process of filtering water under pressure through a semi-permeable membrane, allowing water to pass through but rejecting other particles such as bacteria, toxins, salts, and anything bigger than around 150 Daltons.

 

Back to Resources

Why Alliance?

• We can visit you today.
• All parts and labour guaranteed.
• Written estimate within 24hrs.
• Reliable Engineers!
• Great Customer Feedback!

• Peace Of Mind As Standard

Testimonials

• It is heartening to come across a company that takes its responsibility for quality and customer service as seriously as you do

• Mrs. Lamb

• Click to view more testimonials.

Useful Links

• Institute of Plumbers
• Energy Saving Trust
• The Carbon Trust
• Gas Safe Register