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#1
02-11-2010, 10:08 PM
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Mis-information that short cycling eats membranes. Slow death sure and years I find acceptable.
Going off topic here, made me check my notes and do some measurements. -looks like I replaced the membrane Jan 16/07 -last replaced the DI, July /09 -current tap TDS 190, after RO TDS 40, after DI TDS 13. So bad me allowing my DI to exhaust itself, and yes my membrane is showing wear but it's been 3 years and it's a 100gpd so a rejection rate of only 90% to begin with. Guess I'll change my DI tonight and be good for about another 6 months.
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my tank 
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#2
02-11-2010, 10:19 PM
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It wasn't misinformation in my case when I replaced three membranes in a row after only 2 months each. And they were wrecked beyond reckoning. Like, input TDS of 200, output TDS of 190. It really stung me since they tend to be about $100 a pop.
 I'm trying to save others from that financial hit when I post about the short cyclings .. I honestly don't know what the difference between your setup and mine is, I'm happy it's working out for you but to be blunt, I don't understand how you're immune to it while I wasn't .. I'm jealous dude.
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-- Tony My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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