I use this setup to clean my kegerator (keezer) beer lines using an aquarium pump.

The basic idea is to daisy chain your taps and QDs together so you can pump through all the taps at once and recirculate the cleaner.

Note: this only works for perlick-type faucets, if you have a plunger on the front of the tap it will not work and you will make a mess.

I was inspired by the jumper post from Brewhardware.com (https://www.brewhardware.com/product_p/ball_lock_jumperpost.htm).