DRAINAGE COMES IN ALL TYPES FOUL,STORM,SURFACE ETC.
(1) FOUL : THIS COMES FROM WASTE, TOILETS ETC.
(2) STORM : THIS IS YOUR GUTTERING OUTSIDE WATER,ROOF GUTTERING ETC.
(3) SURFACE : THIS IS PAVING CHANNELS,ROADS,PAVEMENTS ETC.
DRAINAGE WHEN PUT INTO NEW BUILDS MUST BE RIGHT FIRST TIME AS WHEN THE FOUNDATIONS ARE IN OR BLOCK AND BEAM IS IN ITS VERY HARD TO GO BACK AND PUT RIGHT,WHEN LAYING DRAINAGE PIPES ALLWAYS USE SPIGOTS AT THE COLLARS AND COVER WITH A GOOD MATERIAL AS THE PIC BELOW SHOWS.please wait for pics to load.

ALLWAYS USE A JOINT LUBRICANT WHEN JOINING PIPES IF YOU DONT YOU RUN THE RISK OF PUSHING THE RUBBER COLLARS OUT,WHICH WILL CAUSE LEAKS LATER ON.NOTICE THE PLASTIC MANHOLES/RISERS WE HAVE USED HERE.