I spoke to the Water Dept. and they provided what may be the source of the problem and I am passing it on in case there are others with the same issue. The possibility is that in Sept.when they replaced the Water Meter for our house and at the same time they installed a "
Check Valve" which is now a state requirement. When they install this valve they should also tell the customer that they [customer] must install an "extension on the water heater"!! This provides some controls on the water pressure. It is possible that the valve in the bathroom blew out because this extension was not installed to control the water pressure. I am sure this is not a real complete technical explanation but it should cause some to look into the exposure. We have also noted the water pressure in the house will fluxuate at times and this may be one of the causes? It is interesting that when the plumber came and repaired the "blow out" we had on the valve in the bathroom he looked at the water heater, noted no "extension" and said when he came back (which is be end of week) he will have to look at that! I was told that Customer's should be notified of need for "Extension" on older homes when meter is replaced and check valve installed but IT IS NOT BEING DONE!!! We are having a Water Dept. tech. look at it today. Hope this alerts some to a potential exposure.
