Yes. Superwetters allow us to drain glass at a very high TDS. No spots. Conditions change radically though. Therefore it isn’t practical. Temperature, humidity, and shade make all the difference. I drained exceptionally high TDS water once from a hydrophobic surface using a superwetter (.01% concentration). Perfect results. Perfect conditions however.
I have two FB groups now.
One is the Glass Smart Product Review;…for testing existing products.
Two is the Glass Smart Think Tank;…A secret undercover group (special invite) for people who are developing products.
These are both very active groups currently.
Send me an email if you are interested.