thm
New Member
A few days ago, the water pressure dropped off considerably in my shower, and the tub fill became sluggish as well. None of the other plumbing fixtures in the house had any problems, although the water had been temporarily shut off and drained for some plumbing work, suspiciously on the same day the problems started. The shower and tub are fed from a Grohe 34 311 thermostatic valve. Since the pressure rose as I turned the temperature control colder, I figured that there might be some obstruction on the hot water side. So this morning I finally got around to taking apart the valve.
And what an obstruction I found! Crammed in the supply pipe, outside of the interior check valve, I found (and pulled out) perhaps a dozen strips of what looks like shaved plastic or scraped paint. In the pipe, of course, they were all scrunched up, but pulled out, the strips measure 5/16 to 7/16 wide, are 0.005 to 0.006 thick, and are an inch to several inches long. They have many holes througout, but many of the edges look fairly straightly cut.
What could this stuff be, and how did it get into my hot water supply line?
And what an obstruction I found! Crammed in the supply pipe, outside of the interior check valve, I found (and pulled out) perhaps a dozen strips of what looks like shaved plastic or scraped paint. In the pipe, of course, they were all scrunched up, but pulled out, the strips measure 5/16 to 7/16 wide, are 0.005 to 0.006 thick, and are an inch to several inches long. They have many holes througout, but many of the edges look fairly straightly cut.
What could this stuff be, and how did it get into my hot water supply line?