A CHEAP AND VERY EFFECTIVE RECORD CLEANING SOLUTION.


Over the years I’ve tried most of the record cleaning products out there, including the expensive stuff. Here’s what I’ve been using for many years now. It is totally biodegradable and will do no damage to your valuable LPs, and will get them sparkling clean.

https://us.shaklee.com/Green-Home/Household-Cleaning/All-Purpose/Basic-H2%C2%AE-Biodegradable-Cleane...

Use one capful to a gallon of distilled bottled water. Use no more than the suggested capful. More is not better in this case. This will cost only pennies per gallon. 

Frank

PS: I would have put this post in the Analog forum, but this forum gets a lot more action.
128x128oregonpapa
In the very comprehensive tome Rushton Paul wrote (and @whart published), he makes the case for Alconox Liquinox. For lowering water surface tension (both in and out of ultrasonic cleaners), he explains why Tergitol 15-S-9 (made by Talas) is a good choice. The Library of Congress used the similar 15-S-7, but it is not water-soluble, and requires multiple rinses to remove from the LP groove (each LP side contains one long, uninterrupted groove, not grooves ;-) .
I still follow the recipe and method in Rushton's article. It's pretty comprehensive and has served me well. Easy to implement once you source the ingredients.
Here's the link https://positive-feedback.com/audio-discourse/rushton-paul-diy-approach-ultrasonic-cleaning-lps/
Cheers,
Spencer
@bdp24 - just for the record (ahem), it was Neil Antin's monograph that I published. Rush's article appeared in Positive Feedback as I recall. (I think Rush got out of vinyl for some reason a couple years ago, but may be wrong). 
Bill Hart