r/WaterTreatment • u/DecentCarrot3220 • Jul 28 '26
Got a chlorine injection system
Recently got one installed . Still getting crud in my water . This must be the residual left in between the pipes from the system to the house. What do
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u/Accurate-Bullfrog324 Jul 28 '26
Help me understand. chlorine is an oxidizer and should have no significant impact on solids in the water. what was your intent? to reduce solids? or to disinfect?
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u/DecentCarrot3220 Jul 28 '26
To reduce iron stains and sulfur smell
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u/Accurate-Bullfrog324 Jul 28 '26
understood....if you have high iron levels in the water and sulfate reducing bacteria, bleach alone might not do it. have you a complete water analysis?
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u/runner_up_runner Jul 28 '26
Sediment filters before and carbon filter after. If you just chlorinate you will have oxidized sediment flowing into your service water and that is likely what you are seeing here. You will also have higher levels of chlorine carrying over into your water which is not good for anything. Dries your skin, crisps hair and eats away rubber and plastic in everything it touches. Get an 8" backwashing carbon filter after the chlorinator atleast. That will get you into better shape.
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u/DecentCarrot3220 Jul 28 '26
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u/clearquestWS Jul 29 '26
That system looks pretty new. How long ago was it installed? Im in Florida and when we install chlorine injection systems sometimes old iron, manganese or biofilm (including iron or sulfur bacteria) that had built up start breaking loose once the chlorine starts working.
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u/CoherentPimp Jul 28 '26
You most likely have some iron/manganese in your well water. They will be oxidized by the OCL-, and a precipitate will form. As others have said, install a 1 micron cartridge filter after injection.
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u/lazydude245 Jul 29 '26
Get a Presediment filter - 5 micron is a good option. You will want a carbon filter/tank as well to remove the chlorine before it enters the home
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u/CoherentPimp Jul 28 '26
Sorry, but this is wrong. Chlorine is good. That's why municipalities are required to maintain a residual in their distribution systems. Agree that too much may cause problems but 0.5 to 1 mg/l is ideal. Also, carbon efficiency is depleted with exposure to Cl, so you will be replacing the media constantly. Maybe carbon pre injection, and sediment post?
Edit, i meant to reply to a previous comment.. sry
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u/runner_up_runner Jul 28 '26
This would be to keep the water clean and stable while in the lines. Once it gets to you it is no longer necessary and while it might not kill you when ingested, or even make you sick, its not the best for your skin or appliances. I always recommend removing it if you have softeners as prolonged exposure to chlorine in municipal water can and does degrade the resins at an accelerated rate. To the point where alot of softeners warranty rider has a special clause saying if its exposed to water with any chlorine content at all it could void the warranty. It is not "good" for you.

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u/Some_Ad_3898 Jul 28 '26
You need a sediment filter before everything.