Many Canadian homeowners using well water face problems with bacteria, iron, and sulfur in their water. It may cause a bad smell and taste. Bleaching the well, also called shock chlorination, is one of the most effective ways to remove bacteria and maintain the well water quality.
Shock chlorination is a common method, but you need to be careful with water after chlorination, as it can be harmful if you drink it too soon. Normally, you should wait 24-48 hours before using the water, but in some cases, you may need to wait longer.
It is a common process, but it is recommended to call an Oaks Wellness Water professional for guidance on your and your family’s safety.
What Does Bleaching a Well Do?
The bleaching process involves adding bleach to water; the sodium hypochlorite releases active chlorine that works to remove bacteria such as E. coli, sulfur bacteria, iron bacteria, and many other viruses.
The bleaching process may disinfect the well water, but it’s not a permanent solution; you need to repeat it whenever you notice bacterial growth in your water.
When Should You Bleach a Well?
You should not bleach your well on a guess basis, as over-bleaching may damage your water system. There are some circumstances in which you should bleach your well:
- Whenever you open your well, whether for changing the pump or plumbing repair.
- If your area experiences flooding or contamination, it may introduce bacteria and debris into your well.
- After the new well is installed, it must be disinfected before using water from it.
- If you notice a bad smell and a rotten-egg taste.
- If you notice that the water is cloudy or discolored.
- If your Oaks Wellness Water test shows that your water contains bacteria and viruses.
How Long After Bleaching Can You Drink Water?
Chlorine needs time to spread throughout the system and fully disinfect. It takes time to break down the bacteria and viruses to safer levels. You need to wait before using water after bleaching:
Minimum Waiting Time
The minimum waiting time should be 12 hours. But it is not an ideal time, so use water only in an emergency case. But never use it before testing.
Recommended Waiting Time
It is recommended to use water after 24 hours of bleaching, which is a safe baseline. Never use it without flushing the waterline system and testing even after 24 hours.
Ideal Safe Range
The best practice is to use water after 24–48 hours of chlorination. Always test the water after that much time, too, because chlorine removal is not time-dependent but also depends on well depth and the amount of chlorine used. Heavy chlorination takes 3-4 days to fully clear.
Safe Chlorine Levels for Drinking Water
You need to test the water after chlorination before using it. The 0.2-2.0 mg/L chlorine range is a safe range to use, but amounts above this may prove risky for your health, as they can cause stomach, skin, and eye irritation, along with unpleasant taste and smell.
Step-by-Step: What to Do After Bleaching a Well
You need to follow some simple steps after bleaching a well to ensure that your water is safer, cleaner, and healthier for you:
Step 1: Circulate Chlorine
Run water through all faucets for 10-15 minutes to ensure that chlorine reaches and settles in your water pipes.
Step 2: Let It Sit
Leave the system unused for 12–24 hours so that chlorine disinfects effectively and breaks down all bacteria and viruses present in the system.
Step 3: Flush the System
Flush the system completely after 24-48 hours. Run the outdoor hose first, then the indoor faucets. Continue flushing until the chlorine smell fades.
Step 4: Test the Water
Don’t just rely on the smell. After flushing, use a pool or water test kit to ensure the water is safe to use.
Step 5: Confirm Safety
Confirm your safety by noting the smell, water clarity, and achieving the safe chlorine level in the available water.
Can You Shower or Use Water During This Time?
You should not use the water during chlorination or within the recommended timeline after the process. Water used for drinking and cooking should be avoided. While bathing and doing laundry, it may also prove harmful.
People with skin and eye allergies may experience irritation and redness after showering with chlorinated water.
However, you can use it to flush the toilet, provided the water does not come into contact with your body.
Signs Your Water is Not Safe Yet
Even after 24-48 hours of chlorination, your water may still not be ready to use. Some common signs can tell you that your water is not ready to use:
- You will notice a strong chlorine smell, like bleach.
- You will notice that the water is cloudy.
- You will notice a chemical taste in the water.
- You will feel skin and eye irritation, redness on your body after contact with water.
The chlorine smell and water clarity alone are not 100% reliable. If you don’t notice these signs, your water may still not be ready to use. It is recommended to test your water before using it for your comfort, safety, and peace of mind.
Common Mistakes to Avoid
There are some common mistakes homeowners make after the chlorination process that should be avoided for your and your family’s health:
- Drinking water too early
- Not flushing the system properly
- Skipping testing before using the water
- Using too much bleach for chlorination
- Ignoring persistent contamination after bleaching the well water
When to Call a Professional
It is recommended to contact an Oaks professional if:
- You face repeated contamination in your well water.
- A strong rotten egg-like odor remains there even after chlorination.
- Bacteria keep returning even within weeks after chlorination.
- You are unsure about the bleach dosage, as under-dosage may not disinfect your well, and over-dosage can cause system damage.
Conclusion
Bleaching the well is one of the best methods to clean your water, but if you use chlorinated water too early, it may be very risky for you and your household.
Never rely on guesswork. Always wait 24-48 hours after bleaching the well, then flush the system and perform water testing. If the water bacteria test is negative, it is safe to use the water. A little extra time and effort always ensures that water is safer for you and your family.
