Filter capacitors to avoid pop when hitting footswitch
No, the pop sound might still be there since capacitors have leaking currents.  Put two resistor to the ground to make sure the DC level is the same on both sides when you turn on the switch. 







simulate this circuit &ndash; Schematic created using CircuitLab

R1 and R2 have the same value , pick one at least 10 times the output impedance. 

To pass low frequencies (down to 10Hz) for 22uF choose R1, R2 at least 2K.