- Water Testing for Purifiers
- Water Testing for Pools, Spas & Hot Tubs
- Water Coolers
If you are still unsure after reading this article, then please get in contact with us. We are happy to help.
There are many different types of water purification systems around.
- For newly installed water purifiers: it is recommended testing water before and after the installation process to ensure correct set up.
- For all water purifiers: water should be checked at regular intervals, to ensure that filters are still performing at their best. Water filters will need replacing at certian intervals, also depending on use and hardness of the water.
- For private water supplies or water tanks: regular water tests should be standard, especially when seasons change (temperature changes, heavy rain fall & agricultural intensity can affect water quality in ground water and aquifers).
Below is a table listing various water improvement systems and most recommended water testing kits*:
|Water Improvement System||Main Purpose||Recommended Water Testing Kit*|
|Water Softener||Removes ‘hardening’ minerals like magnesium and calcium from water, which are often replaced with sodium ions (usually by increasing the salt content of water).||Hardness test kits to test the hardness of water. As a result of the softening process, levels of salt (as sodium chloride) can increase, which can be harmful in drinking water. Carry out a Chloride test to be safe.|
|Ioniser||Ionising may also remove contaminants from water, the main purpose however is to raise the pH as part of an alkaline diet. Some also claim to remove chlorine, chloramines, lead, bacteria, rust, arsenic and traces of pharmaceuticals.||pH & Alkalinity, Total Chlorine test, Lead test, Arsenic test.|
|Reverse Osmosis (RO) for households||RO systems usually use one or more filters to remove organic compounds, like salt and natural minerals, and often also bacteria and disease-causing pathogens. Most systems use different steps or filters to remove various dissolved and/or suspended species from water.||Total Dissolved Solids to measure the total amount of mobile charged ions, including minerals, salts or metals dissolved in water. A pH & Alkalinity test and/or Total Metals test may also be used.|
|Biosandfilter||A filtering method designed to re-model natural water filter methods using different layers of sand and other sediments.||Multi-parameter kit like 12-in-One to test for coliform bacteria, nitrate, nitrite, hydrogen sulfide, total hardness, total alkalinity, total chlorine, free chlorine, copper, sulfate, iron & pH. A Total Dissolved Solids test and/or Total Metals test may also be used.|
|Gravity Water Filter||Designed to mimick the natural flow of water through rocks and hence potentially remove bacteria, nitrates, chlorine, sulphates, heavy metals etc.||Multi-parameter kit like 12-in-One to test for coliform bacteria, nitrate, nitrite, hydrogen sulfide, total hardness, total alkalinity, total chlorine, free chlorine, copper, sulfate, iron & pH. A Total Dissolved Solids test and/or Total Metals test may also be used.|
|Water Filter Jugs||Mostly removing impurities from tap water, including calcium carbonate.||Hardness test kits or Total Dissolved Solids tests|
(*This list is for recommendation purposes only and may not be complete. Each water purifier / filter may vary. Please check with the manufacturer for detailed advice on how to check the performance.)
Please note, that the water testing kits are screening tests only , they cannot be used to declare water as safe for drinking.
Here are some other tests for water filters / purifiers, which you might find useful:
- Total Chlorine – check the total amount of chlorine, residue from sanitising the water
- Copper – from copper pipes may leach into water
- Total amount of Heavy Metals in water – various metals may occur naturally in water or enter the water through plumbing (ie copper or lead pipes)
- Iron – another heavy metal which may be naturally present in water
- Lead – from lead pipes or naturally present in water
- pH – we offer a wide range of pH water tests
Sodium in softened water = 0.109 x hardness
As an example:
If the hardness = 120 parts per million (corresponding to 7.0 grains per gallon),
then the sodium in softened water
= 0.109 X 120 (hardness)
= 13 milligrams sodium per cup2 (rounded to the nearest whole number).
1 Parts per million is essentially the same value as milligrams per litre (used interchangeably).
It is vital to ensure safe water quality in your pool, spa or hot tub. Test water regularly to ensure adequate pH & alkalinity levels, to make sure that the correct amount of sanitiser is present and there are no bacteria. It is generally recommended to test your pool 2-3 times a week in the summer and once a week in the winter. Some sanitisers may have no effect if the pH & alkalinity levels are not balanced.
Fore more detailed information for your hot tub, please read: How to look after your hot tub safely and test the water regularly.
The list below is for recommendation purposes only and may not be complete. The amount of sunlight on the pool or hot tub/how-to-look-after-your-hot-tub-safely-and-test-the-water-regular, extent of use, sanitiser used, type of pool plumbing and other external factors will also influence water quality.
|Main Purpose||Recommended Water Testing Kit*|
|As a minimum, regular monitoring of pH, alkalinity, hardness, free & total chlorine / bromine ensures safe use. Additional tests for total dissolved solids (TDS), metals and cyanuric acid can be useful.||Quick Pool Check 5-in-One testing for free chlorine, total chlorine, pH, total alkalinity and total hardness. Pool Check 4-in-One testing for free chlorine, total chlorine, pH, and total alkalinity. Easy Pool 3-in-One testing for free chlorine / bromine, pH, total alkalinity. Other test strips include Bromine, Total Dissolved Solids (TDS) or pH tests.
Photometer: these handy devices are ideal for customers who test their pool & Spa water regularly and want accurate results instantly. There are 3 types available: eXact® EZ Photometer Pool, eXact® EZ Photometer Spa as well as iDip for Pool & Spa. To view the full range click here and to compare the photometers click here.
|coliform Bacteria||Bacteria testing in pools or hot tubs is easy with the Bacteria test strips, test results are available within 15 minutes. To check for bacteria with a higher accuracy (usually used for drinking water) try this water bacteria test. For our full range of bacteria tests click here.|
|Legionella||It is also recommended to test for Legionella bacteria, either by testing the water or surfaces. For our full range of Legionella tests click here.|
|Laboratory tests||For very detailed test results and a laboratory test report, please view our range of laboratory tests here.|
|Open Water Swimming||We have a special range of water tests for Open Water swimming. For more information, please click here.|
What is the difference between chlorine and bromine treatment of pools?
|Main Purpose||Recommended Water Testing Kit|
|Water coolers are a convenient way to offer fresh water in public places. They should be checked regularly for bacteria built-up around the tap.||Bacteria test kit for water coolers|
Further Free Resources:
Got a question about water testing? Try our complete list of Free Water Testing Resources. Here are the most frequently read guides:
- Click here to download our FREE Water Guide
- Read an overview of the potential contaminants in your water
- Why test your water and water supply?
- Unusual colours, smells and taste of your water & further advice on finding the right test kit
- How to choose the right Water Testing Kit
- Choosing the right water testing kit for a water improvement & purification system, water cooler or a pool, spa or hot tub
- How to understand the results of your Quality Water Test Kit
- How to test for lead correctly and what immediate steps can be taken to reduce lead exposure
- How to get the best drinking water – which water filter?
- How to check if my water filter is working?
- How to test the pH of soap?
- How to find the source of a leak in a property
- How to look after your hot tub safely and test the water regularly
- Commercial Applications for Water Testing: Buyers Guide – Water Testing on vessels, ships as well as water tanks in remote locations
Disclaimer: Only opinions based upon our own personal experience or information detailed in academic journals or other publications is cited. This has been done exclusively for anyone who is interested in this subject but is not intended to replace proper analysis. We cannot accept responsibility and liability of any kind which may result from the application of this information. We always recommend to consult an expert to discuss any test results or get a full recommendation on the specific subject and specific to your situation by an expert.
This information is owned by SimplexHealth and you do NOT have the right to reprint, sell, auction or distribute this information.
There are strict standards for the quality of drinking water within Europe mainly laid down in the EU Drinking Water Directive (98/83/EC). These are based on advice from the World Health Organisation (WHO).