RODI and TDS problems:(

[nanoreefer]

i bought an aquasafe RO DI unit and i realy dont like it mutch it leaks and is a pain but i cant aford another one for a wile, it was doing a good job filtering the water and i had 0 TDS, but when i changed the DI resin cartrige to a new one iam haveing problems, the water whent over the DI resin because there was some space as the canister wasent packed full, so i changed it agian and agian it isent full, sence i had no more i turned it on its end so the water would go up threw it not sideways, and it dident seem to work i had 66TDS, then today i tuned it on again and now its 0?? anyone know what might have happened i let it run before so the water i tested wasent sitting in the unite? if anyone eles uses the aquasafe aquarium untie how do you like it?

my other problem is that i lost the instructions for my HM TDS meter, i maid some SW out of desperation with the 66TDS water afew days ago and have it in a brute barbage can(its for my FOWLR not reef)and when i whent to test it again it said ERR_ i thoguth a TDS meter worked in SW? i have never used it in SW before sence i just tested the RODI water i was going to use before i made it, is the water to high in TDS to meause from the salt(IO brand BTW)

sorry for the long post but iam realy paranoid about my water