On-table colonic lavage for preparing obstructed bowel prior to anastomosis or stoma formation is now routine in adults, but it is seldom used in paediatric practice. We describe a simple technique for intraoperative colonic lavage using inexpensive medical devices that are also readily available and disposable, a Replogle tube, a fine-bore sucker, and a 20-ml syringe. We have used this technique in infants with intestinal obstruction due to anorectal malformations, intestinal atresias, and post-NEC strictures, to good effect.