Yes,or
Butler does it...
Also my schematic that is provided with my Tm,is fully labeled for all size tools needed and parts #S.
I have a onboard parts box for all replacement items labeled and ready.For on the job repairs if need be...
Also from disassembly to re assembly a seperate note book detailing exactly what steps as they are taken...
Pretty bulletproof,I think...I may be fanatical in the things I do,but time is money.An downtime is not my cup of tea.My heater core failure is the biggest thing that happened here in 21 yrs. An I do not regret the experience.Cause it showed me that I am not infallible...
An thanks to Lance Golden ,tds testing of all water we use at all locations is now a mandatory procedure as well as quartely descaling no matter what...