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Nick_Thompson

  • Posts: 810
Oily deposits on pre filter!
« on: August 24, 2015, 11:27:24 am »


In over 10 years of purifying water I have never witnessed anything like this before.

The picture doesn't really show clearly the extent of the initial condition of this pre filter as I had accumulated most of the oily deposit on my finger, having wiped most of it off in disbelief before capturing image.

I did let the filters run a little longer this time round, 4 or 5 months, I suppose, but even so, this is supposed to be our drinking water.

Anyone else experienced something similar?

Nick
Do quantum mechanics fix old transits?

And let us not forget, voyeurism is an occupational hazard that we simply must endure.

Walter Mitty

  • Posts: 1314
Re: Oily deposits on pre filter!
« Reply #1 on: August 24, 2015, 12:42:51 pm »
Do you have a pumped system?  Could it be from the pump?

Nick_Thompson

  • Posts: 810
Re: Oily deposits on pre filter!
« Reply #2 on: August 24, 2015, 02:41:20 pm »
I do, Walter, but I have the pump situated after the pre filters and before the RO.

I was just wondering, seeing as 95% of your water supply in this area comes from boreholes, whether the recent fracking has contaminated the water table.

Nick
Do quantum mechanics fix old transits?

And let us not forget, voyeurism is an occupational hazard that we simply must endure.

Walter Mitty

  • Posts: 1314
Re: Oily deposits on pre filter!
« Reply #3 on: August 24, 2015, 05:07:29 pm »
I do, Walter, but I have the pump situated after the pre filters and before the RO.

I was just wondering, seeing as 95% of your water supply in this area comes from boreholes, whether the recent fracking has contaminated the water table.

Nick

I very much doubt it as there would be a major alert on the drinking water.  I was wondering about the possibility of backflow from the pump if stopped under pressure.  However, I think that picture is the sediment pre-filter (please confirm) so any backflow would hit the carbon pre-filter first as it's nearer the pump.  Also, 5 months between pre-filter changes is normal for me.  I changed mine very recently and didn't notice anything unusual.

CleanClear

  • Posts: 14600
Re: Oily deposits on pre filter!
« Reply #4 on: August 24, 2015, 07:00:01 pm »
Is it actually oil or a bacterial/fungal growth ? And is it on the top or bottom of the filter ?
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Nick_Thompson

  • Posts: 810
Re: Oily deposits on pre filter!
« Reply #5 on: August 24, 2015, 07:14:11 pm »
Walter: Yes, it is the sediment filter.

CleanClear: It was the bottom of the filter, and I can only say that it felt like slightly emulsified oil between my fingers.

Thanks guys!

Nick
Do quantum mechanics fix old transits?

And let us not forget, voyeurism is an occupational hazard that we simply must endure.