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Thanks for that Eric.
I basically followed that. In my case I left the mirror in place and had the scope slightly below horizontal so the water could drain out.
I used a Bunning pump up garden sprayer to wash the mirror and used osmotic filtered water.
I then used Bintel cleaning fluid and daubed it with lots of cotton puffs. Once no grit and pretty clean I did a final clean with Bintel cleaning fluid and white unscented tissues changing frequently and small areas at a time. Then a final minor streak here or there cleanup.
Mirror looked like new after about 9 months of use.
Also another precaution, you'll find 90% of your serious dust and grit comes from those few nights that are really windy. So it may be a good policy to not use your scope on those few really windy nights.
Greg.
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