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Old 11-20-2010, 12:46 PM   #1
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Default Oily / Greasy feeling water

I sent a crew out on Thursday to a co-worker's grandparents house to replace the galvanized pipes in the attic with CPVC. They replaced both hot and cold horizontal runs ONLY. Friday we replaced the water heater. Today they called and said the hot water has an oily/greasy feel to it and when they fill up a glass they can see an oily residue in the water. I have never heard of this before; anyone have any ideas? Thanks for any advice
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Old 11-20-2010, 01:18 PM   #2
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Is this on city water?
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Old 11-20-2010, 01:42 PM   #3
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Is this on city water?
Yes city water; this issue didn't show until we did the re-pipe. The galv. still runs inside the walls
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Old 11-20-2010, 02:29 PM   #4
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Any chance a piece of the new material was not new off the shelf and may have been contaminated somehow? Sometimes it's right in front of us. Can do samples preferably from a 2 handle faucet of hot and cold to narrow it down.
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Old 11-20-2010, 02:39 PM   #5
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Any chance a piece of the new material was not new off the shelf and may have been contaminated somehow? Sometimes it's right in front of us. Can do samples preferably from a 2 handle faucet of hot and cold to narrow it down.

Everything was bought at the supply house that morning; shelf-life of material is unknown. I don't stock CPVC at the office because I hardly mess with the stuff. They say it is only from the hot water side; I am going over there Monday just wanted to see if anyone might have an idea
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Old 11-20-2010, 02:52 PM   #6
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Everything was bought at the supply house that morning; shelf-life of material is unknown. I don't stock CPVC at the office because I hardly mess with the stuff. They say it is only from the hot water side; I am going over there Monday just wanted to see if anyone might have an idea
Let us know what you find.
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Old 11-20-2010, 02:56 PM   #7
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the problem is more than likely coming from the hot water tank... did your guys drain the tank and refill it... it could be crap laying in the tank that got stirred up when you refilled it.
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Old 11-20-2010, 03:01 PM   #8
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the problem is more than likely coming from the hot water tank... did your guys drain the tank and refill it... it could be crap laying in the tank that got stirred up when you refilled it.
It was doing it Thursday after new pipes were installed and old water heater was still in place. Friday we installed a new heater. If it was with the old heater you would think the issue would have been present before we did any work
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Old 11-20-2010, 03:41 PM   #9
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I sent a crew out on Thursday to a co-worker's grandparents house to replace the galvanized pipes in the attic with CPVC. They replaced both hot and cold horizontal runs ONLY. Friday we replaced the water heater. Today they called and said the hot water has an oily/greasy feel to it and when they fill up a glass they can see an oily residue in the water. I have never heard of this before; anyone have any ideas? Thanks for any advice

You need to go to the cust. home to confirm the condition of the water. Take samples from different faucets, hot and cold. If you definitely see oily residue in a clean glass container, then I would tell cust. that they need to contact water purveyor. You as the plumber are not responsible for the quality of the water, only getting it into their home. My 2 cents.
I wouldn't think that the pipes you installed had oil or grease in them, but hey, ya never know.
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Old 11-20-2010, 09:07 PM   #10
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I've never heard of a water heater causing oily residue but that would be the easiest fix for you. Manufacturing oopsie maybe but I doubt it. They say hot only so I would sample the cold supply to water heater for the oil, as well as the hot coming out. They are probably saying it was fine before new work was done. And it may be so but no matter your name is on it as the last one to touch it. Man good luck dude.
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