Colloidal interactions, hydrodynamic and contact forces play competitive roles in the formation, stability and growth of clogs . This competition leads to critical phenomena in clogging processes. In a cross-flow setup, adjusting viscosity and flowrate can prevent clogging by deposition at the intersection . Below a critical value of the hydrodynamic stress, particles de-posit on the channel walls, eventually forming a permanent clog. In a system of parallel microchannels with driving pressures ≤ 20 mbar, flow is too low to overcome attractive colloidal forces that induce clogging by adhesion . Above 20 mbar, high driving pressure delays clogging. The number of particles escaping the channels before clogging increases with increasing pressure. In addition, Lattice Boltzmann simulations of suspension flow through pores show that clogs formed by adhesion can be removed using driving pressures higher than a critical value . This critical behavior can also manifest as a function of flux density , number of injected pore volumes , and coulombic repulsion .