What flow rate (L/min) would you use from mains tap through DI Vessel to fill tank on your van. As I'm a bit of a miser (yes, I realy am ), I use a flow rate of 1ltr per minute (mains tap of 52 tds). People say the lower the flow the better to make resin last longer... but takes ages to fill tank on van...so how much higher flow rate should I go?..... 2ltr/min.....3ltr/min? What do you guys do? Will be getting some IBC Tanks in the future, so will be OK then.....but for now as above ^. Cheers .