Water tables, groundwater infiltration, sludge or whatever is clinging to the host pipe wall, you don’t want it touching your resin. In tough spot you can guide your liner going to right place with preliner.

Consider preliners as your insurance policy: a lightweight PE or TPU tube you invert first, creating a temporary barrier that keeps the structural liner clean and helps the resin wet-out evenly. Contractors who pair preliner with our calibration hoses report cleaner inversions, fewer wrinkles and a noticeably smoother cure. If your crew flips between domestic laterals and municipal mains, keep one small and one large roll in the van

We stock rolls from DN100 up to DN1000 in 250m (820 ft.) to 500m (1640 ft.) rolls, sized for common domestic laterals through municipal interceptors. Toss in a couple of extra rolls since the rookie mistake is always coming up 5 meters short.