Another Year/Another Mirror Cleaning

I usually clean my mirror once a year in the springtime and to so so, I follow the method recommended by optic waves lab:
https://www.youtube.com/watch?v=9Y8xFnXFVGQ
Of the various methods I've tried in the past, this works the best. My mirror is a 16" pyrex f4.5 and the enhanced coating by Nova optical is now 8 years old and shows no signs of deterioration despite many hours under the stars. I inspect the coating before and after cleaning by holding it up to the sun and by looking thru the back of the mirror for pin holes. Shinning a bright light in front of the mirror didn't reveal any defects, either.
I've enjoyed the views thru the scope which is an astrosystems structure. The mirror was refigured prior to the Nova coating by Ed Jones, a highly experienced optical engineer and I certainly recommend him for testing/refiguring optics:
https://opticaleds.com/
Happy viewing!

Rod Kaufman said:

I usually clean my mirror once a year in the springtime and to so so, I follow the method recommended by optic waves lab:
https://www.youtube.com/watch?v=9Y8xFnXFVGQ
Of the various methods I've tried in the past, this works the best. My mirror is a 16" pyrex f4.5 and the enhanced coating by Nova optical is now 8 years old and shows no signs of deterioration despite many hours under the stars. I inspect the coating before and after cleaning by holding it up to the sun and by looking thru the back of the mirror for pin holes. Shinning a bright light in front of the mirror didn't reveal any defects, either.
I've enjoyed the views thru the scope which is an astrosystems structure. The mirror was refigured prior to the Nova coating by Ed Jones, a highly experienced optical engineer and I certainly recommend him for testing/refiguring optics:
https://opticaleds.com/
Happy viewing!

Same process I have used for many years now with the exception of I put towels on the tailgate of my truck outdoors, along with upto a couple concrete blocks (again covered in towels) to prop it against to dry on the tailgate. I do however always do a final rinse with distilled water as suggested in the video. Spots do tend to inflame my anal retentiveness beyond my comfort zone

The only two optical coaters that I could find who advertise their coatings as meeting military specs for amateur mirrors are:
http://llopt.com/astronomy-services/
and 
http://www.majestic-coatings.com/reflective-coatings.html#ProtectedAluminum
L&L are within driving distance for me in SoCal. Majestic has better prices but shipping charges add up to East Coast from SoCal.
Best overall prices here at AlCoat:
http://www.alcoat.net/al_1.htm