So For weeks I've been hitting my head figuring out why they sps would die within a month, from dipping, QTing process, waiting weeks for a sps free tank etc. I then tried Triton test. a week past by and I get the results, High Tin in my system, 14 UG/l. Found checked all my pumps, Magnets are GOOD. I then suck out the sand, and say " just for ***** lets check my 4-5month old mp40 QD wetsides" Triton test does not lie, Found my cuprit. Call up ecotech and ask for a new wetside. no questions asked. They will send me 2 new ones. A few days past and doing 10% WC daily, with only 1 mp60QD in my tank, I remove it, and behold, a hairline crack? What do you guys think? this mp60 is 1-2 months old I should add. Same place where the rust was coming out of.. I believe it has to due to where both joints meet, It seems as if its to weak and causes it to crack like this. I say Ecotech needs to warranty all wetsides, and have a solution for this. As a result all my sps has perished leaving me only just 4-5 thats hanging on. I wish I would have checked sooner.. My symptoms would include excellent p.e for the first week, Encrust, then slowly no p.e, sps starts to fade and then rtn/stn from base or tips, in a matter of 2-3 weeks. Please leave your input and I would recommend EVERYONE check their wetsides. as well sorry for the bad grammer, P.OED about this hobby and all the money i spent on good equipment to have it fail so early and kill everything. and YES, Its properly maintained and cleaned.