Please share your big water changes processes and stories.
my process was similiar to your previous one prior to adding the basement sump. although far removed from optimal, it seems to again be similiar to your current process.
not having a drilled tank(125) limits the amount of water i can drain into the 55 basement sump. As a result, for simplicity sake, i attempt to do more frequent smaller water changes: 10-15g.
- mix/aerate/heat the new water in the 32g container
- turn off sump return pump
- attach extension pipe to T'd off fuge input-protrude out side window- fully open valve.
- turn on return pump and drain sump till output area is empty-some water goes back up into tank..but not much.
- attach hose to pump in new water container turn on. the hose remains in top of sump at all times, so i do not need to move it around at all..just reconnect it to mixing pump in container.
this should take about 10m.
for larger water changes, i just siphon water right out the window next to tank.