Upon entry to the home, customer stated that there was no water pressure coming from the shower in the hall bathroom. After further investigation and a diagnostics fee, I came to the conclusion that it was the Moen Pozzi temp cartridge. I provided an estimate to replace this cartridge and gave 100% of the diagnostics fee back to customer During my investigation, I offered the homeowner a home filtration system due to the extreme calcification, corrosion and hard water marks on the shower door. customer stated that he was going to have to talk it over with his wife before committing to the two stage Atlas home filtration system.