frankwm wrote:
Yes, after applying Flash and rinsing I got a glue-like white
substance forming around the circumference.

There is a slight misunderstanding.
It was taking the completed 'full-circle' water stream (and now-dry
LP) to the edge of the LP - whilst lifting the LP away from the
stream.
The 'edge' is what you get when, holding the LP almost vertical, is
quickly formed as you rotate the LP - ie; to one side the LP is *dry -
so you are moving this 'edge' around the LP as you are rotating it.
The end-result is an essentially 'surgically-clean' LP. The detergent
solution being *completely.(see above) washed away from the surface as
you're rotating the disc...in fact.if you breathe on the LP you will
see the 'mold-release pattern' - as originally formed.

You will get white deposits left behind in the groove with various
detergents (also the chalk-residues from tap-water if left to 'drip-
dry')..which is why you can't use any-old brand/type - 'Fairy Liquid'
- original - is no good..nor Citrus types.
Even - so-called - 'distilled water' (more like dirty water..if the
Chemist's stuff is typical..) will cause contamination.

Well, I've always cleaned lenses with distilled water with a less than a
drop of fairy (just enough to break the surface tension) then rinsed
throughly with distilled and there is absolutely no residue left on the
lense. I've very critical of lense cleaning solutions, they almost
inevitably alter the bloom of the lense, not obviously when looked at
directly, but obviously if you look at a lense carefully. I don't see why
distilled water should cause contamination.

What exactly have you found in Chemists distilled water? If there were any
residue left, it would be very obvious with lenses

I see no reason why this method of cleaning shouldn't be as effective with
lps.

It's not clear to me what 'detergent' you are proposing and I still don't
entirely understand your method but if you're finishing off with tap water
you're inevitably going to be left with all the impurities in tap water. In
this area, the water is exceptionally hard so you will be leaving calcium
deposites for example all over the lp.