Dear Mr. Pucci,

Thanks for your prompt response. 

Although in the presence of two check valves in the
supply lines, the development of a vacuum in the hot water
tank is a physical impossibility, I agree that my failure
to install a vacuum relief valve in the supply line to the
hot water tank is a nominal violation of the Massachusetts
Plumbing Code.

I have instructed and paid my licensed plumber, Mr. Christopher
M. Gordon, to remedy this defect and to install a vacuum relief
valve in the supply line to the hot water tank. To this date,
the Nantucket Plumbing Inspector has prohibited Mr. Gordon from
complying with my request.

I agree only to the removal of the six or ten inches of 3/4" copper
tubing necessary for the installation of the vacuum relief valve.
I deny that the existing plumbing installation at 3 Red Barn Road
entails any other violations of the Massachusetts State Plumbing Code. 
I do NOT, at this juncture, agree to the removal of any other plumbing
pipes or fittings.

However, I am open to persuasion. If you wish me to consider the
remediation of any other specific deficiencies, please advise me
in detail and in writing. e-mail would be very efficient.

Thank you.

Ernst Meyer