Header and Header Trench Construction - PVC Headers
If constructed properly PVC headers will provide years of reliable service with no chance of rust and minimum fouling at the nipples. Schedule 80 PVC headers are inexpensive and easy to work with. It is recommended to install PVC headers only in a trench that is accessible. As PVC is breakable, care must be taken not to subject the headers to direct impact. All polyethylene pipes should be double clamped with high quality stainless steel clamps and compatible cement used on all fittings.