Some of these methods to test your detergent , are:
1. pH Test Strips: These strips can be used to test the pH levels in your water. If the pH levels are high or low, this may indicate that there is something wrong with the water source. You can buy pH test strips at most supermarkets or health stores. It is one of the detergents testing method through ph strips.
2. Aquameter: An aquameter can be used to measure the salinity (salt content) of your water. High salinity levels may indicate that there is something wrong with the water source, such as a salt mine or an ocean nearby.
To test your water with a water bottle filter, fill up a clean water bottle with tap water and shake it well. Pour about 1/4 cup of detergent into the filter and shake it well again. Hold the bottle close to the faucet and turn it on until the detergent is completely dissolved. Save the bottle of clean water for future tests.
3. DIY Water Test Kit: This is a simple test kit that you can use at home to determine the quality of your water. You will need a container, water, and a detergent. Fill the container with water and add the desired amount of detergent. Stir well and wait five minutes. If the color has changed, the water is likely contaminated and you should make some changes to your lifestyle to improve the quality of your water.