Right got a pleasant suprise today. I'd suspected as much. What i done was put some HG window cleaner in a back pack. Just a small squirt and filled it up with tap water, TDS 160. Yes it foamed and frothed everywhere when filling . Then set about cleaning two bay windows to test it. My first thought was i'd put to much HG in as when i cleaned with the brush it was far more frothy and soapy than i was comfortable with, or would of liked it to be. Results ? Perfect. No streak, spotting or anything just perfectly clean windows.
Ok, i'm gonna test more. I've no idea what is a correct amount to put it. Whats to little or whats not enough. And the other thing i'd be interested to find out is that although that test was fine, what would happen if it was a hot sunny day, would it still be the same perfect result ? I've no idea.
So just to be clear, i've put HG cleaner in my pure water tank. I'm making no claims for it doing anything other than appearing slightly foamy/frothy. I feel its slippier/smoother and easier to clean with. I'm aware that might be in my own head. The results are just a clear finish like you'd excpect with WFP and no additive.
I've also tested HG cleaner in a backpack with TAP WATER. The results are perfect, exactly the same.
It would be good if some others could give it a test out if you have a backpack laying about to test it, i'm not advocating anyone go shove a load in their purewater tank just yet. Be good to get some other feedback. If that stuff works like i'm seeing you can say goodbye to an RO or DI for me.