Overview
Use average liquid laundry bleach to shock chlorinate the urine system. Determine how much bleaching agent to use, then pour the bleach down the well and circulate it through the whole body of water distribution system. Wait 6-12 hours for the chlorine to work, then flush the chlorinate water from your well and pipes. Retest the water system after 2-3 days .
Step-by-Step Instructions
bit-by-bit Instructions for Shock Chlorination
1 Create an opening
Create an open at the top of the good to pour in the chlorine solution. Well caps vary ; this step may be easier for some wells than others .
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If a flat or domed cap on top of a well with no pipes sticking upout of it, you can unbolt the cap and remove it
- If pipes stick up from the well cap, do not remove the bolts! The bolts hold down the bottom plate of the seal and if you remove the bolts, the bottom plate will drop down your well. In addition, the weight of the pump may be resting on the cap, and if you remove the cap, you may lose your pump down the well. The best option is the vent pipe hole. If you can remove this short piece of pipe that sticks up out of the cap, you can use that hole to pour down the chlorine solution. If you have difficulties with this step, call well or pump professional for assistance
Reading: Shock Chlorination
2 Determine amount of bleach
Determine the measure of bleach you will need. An initial chlorine assiduity of 50 to 100 parts per million ( ppm ) is recommended. To estimate how much bleaching agent to use for this concentration, use the table below based on the well diameter and depth of urine in the well. eminence : Do not use the sum depth of the well ; the depth of water is the distance from the water level to the bottomland of the well. This information is on your good log. Your local Watermaster can help you get a copy of your well log. Your well driller may besides have this information .
Amount of Ordinary Chlorine Laundry Bleach Needed to Shock a Well
(roughly 100 ppm)
Depth of Water in Well ( feet )
well diameter ( in ) Less than 50’50-100’100-150’150 ‘ or greater
21 cup1 cup1 cup1 cup
41 cup2 cups3 cups4 cups ( 1 quart )
62 cups4 cups ( 1 quart ) 6 cups ( 1 1/2 quarts ) 8 cups ( 2 quarts )
84 cups ( 1 quart ) 8 cups ( 2 quarts ) 8 cups ( 2 quarts ) 12 cups ( 3 quarts )
108 cups ( 2 quarts ) 12 cups ( 3 quarts ) 12 cups ( 3 quarts ) 16 cups ( 4 quarts/1 gallon )
128 cups ( 2 quarts ) 12 cups ( 3 quarts ) 16 cups ( 4 quarts/1 gallon ) 16 cups ( 4 quarts/1 gallon )
3 Right type of chlorine bleach
Make certain you have the veracious type of chlorine bleaching agent .
Use plain liquid laundry bleach ( Chlorox, Purex, or a generic stigmatize ). Do not use bleach with additives or limited scents. The label should say sodium hypochlorite and the assiduity should be about 5-6 %.
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4 Dilute the bleach
Use 2 cups or less per 2 gallon bucket of water. Straight chlorine can corrode metallic element well parts .
5 Pour the diluted bleach
Pour the load chlorine bleach solution down the well. Be careful not to splash on clothes or skin .
6 Mix
Mix the chlorine and well water. Attach a hosiery to a faucet near the well and run the water. After you smell chlorine, direct the water from the hose back down into the peak of the well ( if you do n’t smell chlorine after a few minutes, add some more before circulating the water ) .
7 check if chlorinated
Make sure the system is chlorinated by opening each fixture ( slump, shower, outdoor faucet, etc. ) one at a time and let water run until you smell chlorine. Be surely to run hot water to draw chlorine into the water heater. If you do n’t smell chlorine, add more diluted bleaching agent solution and circulate with the hose again .
8 Hold chlorine in pipes
Hold the chlorine in the pipes 6-12 hours and do n’t use the water ! ( A few toilet flushes are o ) .
9 Remove chlorinated water
Remove chlorinated water system from well and pipes. Run a hosiery outdoors until you nobelium longer olfactory property chlorine. Do n’t use this water system on plants. Next, run chlorine urine out of plumbing. Less water down the drain is better for the septic tank .
10 Test
About 3 days late, examination for coliform bacteria. Do not consume the water until you receive “ clean ” examination results .
Prepared by Gail Andrews, OSU Extension Service, February 2002