Referred by HVAC Tech. Water line has electricity. Upon arrival found water treatment system to be faulty and causing a ground wire issue. After speaking to customer, customer would like to remove water treatment system. Also expansion tank installed on hot side and causing tension on water lines. Expansion tank is bursted. Informed customer of findings . Customer also wants us to check shower valve upstairs. Shower valve cartridge needs replaced. This type of shower valve is custom and would need to special order parts for it. Gave several estimates to customer and customer chose to get treatment system removed along with relocating expansion tank for both water heaters. Went ahead and removed treatment system and performed water line repairs. Installed new expansion tank along proper support and installed it on the cold side. Checked for leaks and no leaks detected.