A squatter bickering with two other indigents tossed scalding water on them in Port Richmond, cops said yesterday.

Kelly Brock, 48, clashed with two brothers in the abandoned building on Degroot Place near Taylor Street at 8 a.m. Saturday, sources said.

The suspect allegedly grabbed a pot of boiling water and hurled it at the men.

Brock was charged with assault and weapon possession, said a spokesman for DA Daniel Donovan.