100mm PVC tank overflow fitting for smooth wall tanks. Provides female socket suitable for connection to 100mm PVC DWV pipe.
Fix to smooth wall tank using stainless steel screws or suitable roofing screws + roof & gutter silicon.
Connected pipework should be supported to prevent undue weight bearing on the overflow fitting.
Not all tanks are suitable for 100mm overflows - please ensure there is sufficient smooth wall available for the fitting and flange to rest against the tank wall.
Overflow fittings should be installed at the top of the tank wall only; they are not pressure rated and generally not suitable for low level tank outlets due to the additional water pressure and greater expansion and contraction of the tank wall.
