Looks just like mine!!*runs to basement to see if his is stolen*
One word of caution AK77. Knowing the input TDS is nice, but it rarely changes. So now that you know its ~400ppm, you need to put that probe on the outlet of your RO unit (that blue hose that connects to the DI resin canister). That TDS will be imperative in telling you when it's time to flush the membrane and will keep you from burning through DI resin like water
.As the RO unit is used and stored, it builds up with the salts and stuff it's filtering out... When that buildup gets too high, more and more gets through and the output TDS will rise. However if your DI resin cartrige is still good enough, it will scrub out the extra solids, however at the cost of using up DI resin faster. When you do see the output TDS rise from an over-loaded membrane (its obvious, mine goes from 2ppm to 50ppm quick) throw the flush valve for 10-15 mins and go back to making RO water.
One final suggestion. If possible, pickup a garden hose timer and place that at the tapwater fitting. This way you can set it to run for a pre-determined number of hours, walk away, and it'll shutoff, preventing flooded floors
