RO/DI Membrane question

tim the toolman · #1 12-02-2012, 07:05 PM

In the years I have been using ro di I have never wasted a drop of waste water. I use it for laundry (especially washing filter socks) and watering house plants etc. just have a brute set up next to the washer and tied into that feed for my ro water.

bigmac · #2 12-03-2012, 02:31 AM

Thanks for the replies so far. I'd be very curious to see the TDS readings of the water after it was run through maybe two ro/DI systems (without the membranes in either). Therefore it would go through two sediment filters, two carbon filters and two resin chambers without passing through the membranes. It's an odd thought; I'm aware of that. Just curious if it would work and what the readings would be.
I'm not able to re-use the water for my washing machine as the tank will be in the basement and the washer is two floors above (or should I say it's too much work and it makes my head hurt). I'm not a fan of dumping it into the hot water heater as the extra energy utilized to heat the water isn't appealing.
I've also seen an article somewhere about baking the DI resin to recharge it (or was that just a dream I had). Anywho; I'll continue to do some more investigation and some testing once I'm closer to the new build.
Keep any comments or ideas coming.

whatcaneyedo · #3 12-03-2012, 04:09 AM

Here is one of the options I mentioned earlier, this system claims to reduce the waste of a standard 75gpd system by half. http://www.bulkreefsupply.com/brs-15...grade-kit.html

Some people claim to re charge activated carbon by baking it. But from what I've read that doesn't work. Apparently the true process requires pressure, steam and heat.

GFO can however be recharged with some harsh chemicals.