bcowen
Headphoneus Supremus
Very similar. The basics are the water, a surfactant, and alcohol. Distilled water is fine. RO water might be better, but I've never used it. The surfactant is key. I use Triton X-100, but Tergitol is also good. Isopropyl alcohol: I get a kick out of the "99.9% pure" requirement that is so often stated. Never use rubbing alcohol as it contains skin conditioners that aren't going to help condition vinyl. But as long as it's straight isopropyl, anything less than 100% is just water (91% isopropyl is just 9% water). The alcohol is quite diluted by the distilled water in the final mix, so why pay through the nose for a higher alcohol content when you're just going to dilute it anyway? 91% or 93% are cheap and available most anywhere. I also add a couple drops of Hepastat 256 to mine as it not only kills any bugs that may still live but it works as an antistatic agent.Is your DIY fluid similar to the London Jazz Collector fluid?
https://londonjazzcollector.wordpress.com/for-audiophiles/home-brew-cleaner-for-vacuum-rcms/
I use a variety of fluids , but my favorite "cheap" fluid cost $19.95 and makes a gallon. From Audio Advisor--
https://www.audioadvisor.com/prodinfo.asp?number=RDRXLP
I haven't tried the Record Doctor concentrate, but that's a very respected name in the biz and looks like an economical (and easier) way to go.