If it's in the water is may be something different but going by your comment that, "more noticeable if standing over weekend", and if it is primarily on the fixtures or in the sinks/showers, it sounds like Serratia marcescens. This is a common bacteria that is the color you describe. It is...
@bimr, Thanks for the YouTube links. This was also helpful. We believe that the line is a 1" galvanized based on an estimated install date (we have no records for this line) and a 1" valve near the larger main. I considered cutting a coupon out of it to see what it looks like but I may put...
Thanks for all of the replies/suggestions. This has been helpful as we continue to work through this. I have some updates and believe we may be honing in on the issue.
We spent about 2 hours at the house a week ago in an attempt to slow the constant drip from the relief valve. What we...
@BigInch
I'll look at the spreadsheets later today and see if I can get a better resolution graph posted.
You are correct. The relief valve is set to about 65-66 psi and PRV1 (at the meter) is set at approx. 55 psi. This arrangement worked for a while but now it seems that something isn't...
@cvg
No illicit connection that I am aware of - he had the entire lateral replaced about 5 years ago when he had a leak between the house and our connection. We know the contractor and I don't have any reason to believe that he would have done anything like this.
@itsmoked:
The drawing you have is close - there is no tee and additional line running to the question mark. The Watts PRV is located inside the house but schematically, what you show is good.
It is difficult to know what is going on with the in-house PRV. I have no confidence that this one...
1. This is one of the reasons that almost all utilities require a separate service to each house or business.
- Agreed. This is a separate connection but on a old service line (probably installed in the 60s or 70s).
2. Why is the customer watching pressure gauges? Very unusual behavior.
-...
The attached made me suspicious that something was generating pressure inside the house. Unfortunately, I didn't have the flow monitoring on the meter yet. The check valve was installed at this time but the data didn't remain...
There are no other customers after the "customer meter" in the system description above.
I don't believe they have an RO system but we can check this (there wouldn't be a need for one but that doesn't mean there isn't one). I know there is a geothermal system in the house - we've asked more...
I work for a utility and we have been having a long term issue associated with a customer's pressure. The customer has had some leaks, one of which resulted in the loss of a significant amount of water. There are a number of issues, including the customer's internal piping which is a mixture...
In looking at some empirical data generated by others on-line I was seeing this possibility as well. Some of the high resolution graphs of the spikes showed a complete cycle occurring within .1 sec. So with the .1 sec sample rate it could be pure chance that a data point was close to the peak...
We are looking to replace old chart recorders with newer equipment also capable of capturing pressure spikes/water hammer. There are a couple that we've been looking at:
1) ITT Unit: http://www.globalw.com/products/pl200_h.html
2) Telog Unit: http://telog.com/Portals/31/documents/HPR_LPR31i.pdf...
