Bacterial build-up in water supply pipe....

Hello,
We have had serious problems the last while with a bacterial growth in our rising main (service pipe) that feeds water into our house. There are often black particles in the water, these are organic, and not sediment or plastic or anything. They seem to be the root of the problem. Does anyone know how I might be able to perhaps air scour and disinfect this pipe run? It would be about 25 feet long. We are on mains water by the way.
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Do you know for a fact that the water in the main is free of the contamination? I would suspect that it is coming from there. Why would it just happen in you supply? Are any of your neighbors having a like problem. How have you determined that the particles are organic and have you determined what kind of organic?
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Joseph Meehan

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The problem is that the street I am on is fed in two directions by the water. The road is not levelled out either, we are on quite a steep dip, so the two feeds are always 'colliding' outside my house, with any sediment and dirt picked up along the way by the two flows having nowhere to end up but my kitchen! Basically, the water does not move along continuously. The water depot wont help me on this one either, they feign ignorance.
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So what makes you think that "disinfecting" the pipe is going to help?
If the sediment is coming from the city water supply, it's going to keep coming no matter what you do to your feed.
Either give up and buy a whole-house water purification system (Hey Culligan Man!) or get a lawyer.
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On 7 Nov, 15:55, snipped-for-privacy@rochester.rr.com wrote:

Well, if you checked the dates of my posts, you would see a month gap. In that time, I've kind of put the notion of 'disinfecting' my service pipe to bed.
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Most water mains are fed from more than one direction to prevent stagnation as in a dead ended system. Water does not collide, the pressure may come from both ends but the water will only flow to replace what is used or drained from the pipe. Being in a lower end of a pipe will only serve to increase the pressure not feed you sediment. Ask for the water supplier to take and test a sample, and you do the same and compare results. You may need a whole house filter as city water is never perfect.
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Thats interesting EXT, but surely the two flows are technically 'ending' on the street and colliding? We have a very low chlorine residual too most of the time, and I suspect it is being used up by any sediment/dirt the flows may have picked up on the long pipe runs it runs through before it gets to my street. Does that make any sense? We cant seem to get rid of this black/brown particle problem, you will see one or two of them every few glasses of water that is poured.
When I ask the local water depot to flush out the street main, this disappears for a few days, before coming back again. Any idea why?
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