I have slowly been cycling my system since last October. I have a total of 5 grow beds but added them one at a time. Now that they are all in circulation, I find that the last two I added fill VERY slowly and as such are holding water from the system. (it's a CHOP 2) so my sumps are often out of balance in terms of volume, not that it bothers me expect that if a bridge siphon were to malfunction…