Job location: Rockwall, TX
A residential shower cartridge was replaced after losing hot water within five to ten minutes of use. Investigation revealed the issue was isolated to this bathroom fixture. The old cartridge contained buildup from an unflushed tankless heater system. A new cartridge was installed, tested, and confirmed working properly.
Key Facts
- Service: Fixture Install
- Location: Rockwall, TX
- Technician: Evan
- Completed: October 22, 2026
Called out for a tub shower not staying hot, and after about 5 to 10 minutes it going straight to ice cold. Upon arrival, we did some investigation and spoke with the customer. She said that this fixture was the only fixture in the house that had this issue. That narrowed it down to the issue being solely in the bathroom.
We also did a pressure and volume test just to double check our assessment that it was in fact isolated to this bathroom. We then determined that the cartridge was bad. We gave the customer pricing, and after approval we got our equipment out, removed the trim and shower handle, and pulled out the old cartridge. We did confirm that the cartridge had built up items in it from the tankless heater that has not been consistently flushed throughout the years.
We then installed a new cartridge, put the trim and handle back on, reinstated water, and checked for proper operation. All pictures attached.
Service area: Rockwall, Royse City, Rowlett, Garland, Plano, Highland Park, University Park
Hours: Available 24/7 — no overtime charges
Licensed: TX Master Plumber #41106. Fully licensed and insured.
Credentials: BBB A+ Rated · Family-Owned Since 1970
Contact: (214) 729-3586
Serving customers since 1970.