The most common reasons for chlorinating your well are a bacteria problem or after any sort of well or pump work. Another reason why someone may chlorinate their well is to temporarily diminish an odor that may occur from time to time.
How the Chlorination Process Works?
- Open well cover.
- Carefully pour bleach or chlorine tablets into well. We sell chlorine tablets in our Dartmouth Show Room.
- If you have water treatment equipment, put unit in bypass mode for now.
- Connect a garden hose from the bottom of the pressure tank or outside faucet and run hose into the top of well and open the spigot fully.
- Allow circulation process to continue until chlorine is detected from hose. Once chlorine level is strong, wash down the inner walls of the well with the hose and shut off. Now replace cover on well. Let the water sit in the lines for about 12 hours, preferably overnight. Do not leave chlorine for more than 24 hours as it may affect some equipment components.
NOTE: A shallow well generally circulates within 1/2 hour, a deeper, drilled well can sometimes take a couple of hours. Once the hose is flowing chlorinated water, be careful, it may stain or damage clothing (cotton) and/or cause skin/eye irritation.
6. If you have an electric water heater, it will take 10-15 minutes of running a couple of hot water faucets inside your house to remove the stored, un-chlorinated water with chlorinated water. All faucets, tubs, shower heads, toilets, laundry machines (set at low level warm water, no clothes), dishwashers, sprayers at kitchen sinks, outside faucets, and all plumbing in the house should be run one at a time until the chlorinated water is present and then shut down. The entire well, pumping and storage system, and all house plumbing are now treated. Advise all occupants as to the waters condition, and advise the only thing you can do is to flush toilets and maybe some general cleaning using gloves.
Discharging the chlorine:
24 hours after chlorinating start running a garden hose outside to some safe area. If you have a low production well, generally an hour on, two hours off, is a safe practice. As long as you are pumping water, you will not hurt your pump. Monitor the chlorine level and after some time, you should see the level decrease gradually as fresh water enters the well and dilutes the treated water in well. Continue discharging until no chlorine is detected. Chlorine removal is a slow process and may take a long time to remove. It is not uncommon to have chlorinated water for two or three days. Repeat step #6 of chlorinating process to replace the treated water with fresh water in the house plumbing after running water outside and chlorine residue is lowered. If applicable, install a new cartridge into the filter housing and/or switch softener from bypass to service mode. You may now safely return to normal household use of water. We recommend testing the water for bacteria (if this was the initial problem) before using the water for consumption. Also, follow-up testing is recommended to assure that a problem has not redeveloped.
Loss of pressure: If low pressure results after treatment of well has been done, the following should be checked:
Sediment filter in basement may be clogged.
Screens on faucets may be clogged with sediment
If the water pressure on the gauge reads below 20 psi, shut off hose and let it sit for 30 minutes. If pressure does not come up, please call our office. If it reads above 25 psi and you have low pressure, check the first two options again, then call our office.
Before beginning this process please check out the guidelines set out by The Department of Environment:
For more information please contact our office at 902-462-5566