Nice tutorials.
I do it slightly different to the manual method.
Some years ago I got hold of a device to protect the label.
It's called Groovmaster Label Saver as shown here:

I would not use any of those fancy liquids as in the videos.
I use washing up liquid/detergent with rinse aid to make all minerals run off the record with the soap.
I add some pure isopropylalcohol.
Here in Denmark we are lucky to have very pure drinking water from the taps.
Turns out in all tasting tests and scientific examination to be better than bottled water.
I use the water directly from tap at a temperature that makes it just possible to still have your hands in it. Maybe somewhere around 45°C / 113°F.
I use a brush made of natural hair from some animal with soft fur (I don't remember what animal though).
I put the entire record under water with the label protected by the Grrovmaster.
I rub the grooves with the brush. The rinsing effect of the soap, the disintegration process of the alcohol, the temp of the water makes the records extremely well cleaned and when drying the rinse aid is demineralizing the surface before alle the water even left it.
I then made a device to have the LP in a drilling machine so I with ease can centrifuge it and in a few seconds it's dry.
I have had opportunity to compare this cleaning technique with 3 different machines results. Nothing beats the manual process as described IMO.
I've been washing my LP's in hand since I seriously started collecting LP's in the 70's.
Now I have beyond 5000 and they are all clean.
I don't see any need of washing an LP unless I bought it on the used market and some jerk mistreated it or tried to rinse it with one of those snake oil fluids sold as rinsing liquid for LP's.
:-)
The way I treat my LP's, once washed, never need washing anymore.
Everytime I play the LP I do wipe off dust with carbon fiber brush and in case static electricity has accumulated, I use my Zero Stat gun.
I have antistatic inner sleeves for all LP's.
"dolph"