Jus' now com'n across this thread, wished I had found it sooner.
A few months back I went to quote a wc job, asked the lady who did the art work on the screens
She replied, why my husband did; he thought it would be easier to clean while they where still on the house.
I sold her on new screens while I was there ... wish I had my camera then.
A far as cleaning them, I pop 'em out and use Screen Magic!
Spray 'em, wipe the screen and then the frame.
Screen MagicJust spray it on… and your done!
Simple as that ...