Quote:
Originally Posted by zoaElite
SP it was a weird comparison but think of the concept behind it. For a reef tank that has $1000's of dollars invested in livestock you wouldn't want to cheap out and put something that could potentially kill that live stock. Same with a BMW or any luxury car, use of a higher end fuel reduces the chance of damage/ wear and tare on the unit. You do have a good point, people should be measuring there TDS before deciding what RO to purchase. In the end though a RO also removes chlorine and other impurities in the water that could be entering your system.
I would never put tap water in my tank, as it just spells hair algae for me :\.
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Still don't see the comparison, it's not the same. If one gas station sells premium fuel for a standard price and another sells the same fuel for double because it's traveled further to get there, where would you buy from? If you've got a low TDS like 20ppm and can filter it down to 0ppm without an RO, why use and RO? You pay more for the filter and introduce a waste ratio of at least 3:1 compared to 0:1. It's still filtered water not direct tap water and it's not going to damage your tank, it's the exact same thing without the extra waste.
You also don't need an RO to remove contaminants like chlorine, and using the proper filter for the proper application will produce consistent results. Any stirred up sediment or heavy containment from city maintenance will be easily filtered out by a sediment and micron filter, you don't need an RO for this. We could also all use 12 stage filters with triple RO membranes but that of course would be silly, or would it? Or maybe we should ll adjust our RO membranes to waste 10:1 so we get a little more pure water and we're more on the safe side. Where do you draw the line? I simply say you draw it based on your tap water TDS and therefore your specific requirements.