Ryan, do you still hook it up to the sink? Couldn't you just get a hose and have it drain that way?

I set up a similar system with my new tank. I am using a little 1.6A pony pump we call them. Thing isn't super powerful but good enough to suck and drain my tank of 40-50 gallons in just a few minutes... I run the hose out the window and into the garden.

This thing has been a dream! No more buckets for me... I said it earlier but lately after each water change I sit back and say wow I am an idiot! I was so stubborn on my siphon and buckets, fool I am...

I literally don't spill a drop of water, changes are painless quick and efficient...

I highly recommend looking into a method like this for all of you not doing it, it will breathe new life back into your hobby...