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I exclusively use newts for visual and AP
My procedure to clean my mirrors -
1/ Prepare kitchen bench as work area and place well used lint free cotton towels down to place and dry mirrors
2/ Remove mirrors
3/ Wash mirrors in sink using warm to hot tap water first to get dust and grime off using just a medium flow from tap spout
4/ Then wash mirror with cold tap water and cotton balls in a circular motion starting from centre and moving to outside. Only apply light pressure
5/ Rinse off mirror over sink using distilled water directly out of bottle ( 2 or 3 good splashes of distilled water
6/ Tilt mirror at 45 degrees whilst rinsing off with distilled water and let the beads of water run off until almost all water is gone
7/ If any small beads of distilled water remain on mirror , use a cotton tip to absorb or pick them up ( just a light dab on the bead , don’t wipe or press hard )
8/ Let mirror completely dry out on bench top for 20 minutes or so , then re install in telescope
9/ Do not use soaps or solvents on mirror , just warm to hot tap water , followed by distilled water
10/ Avoid touching the mirrors with fingers where possible
Maybe others have different procedures but this one works for me
Cheers
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