added 350ml toTCSX, 700ml to TCSY. 

The TCSX filter is quite green, and when I popped the filter out, I saw a green line of resudue on the tank under the area where the filter seals to the tank.  This was most obvious where the return water emptys into the filter.  The green resudue easily wiped off.  The TCSY chiller, in contrast, was not green at all, and there was no evidence of any resudue under the filter.