In my wife s village near madang papua new guinea they always use pvc pipe for guttering on corrugated iron roofs.
Diy pvc pipe rain gutters.
Install the gutter and run your 1 5 downspout with 90 degree or 45 degree depending on your configuration.
Quickly insert one end of the pipe into the adapter and the remaining end into the elbow and allow the cement to set.
Diy stores sell special paint for gutters and downpipes if the manufacturer s pvc colour is not suitable.
Cut a piece of pvc pipe to that measurement.
Build the entire gutter system and cement it together before splitting the pipe and couplers to create two halves.
Make sure your pipe is cut to the correct length before applying any of the adhesive as it bonds joints very quickly.
Glue the parts together with pvc cement if the system you have chosen does not have silicone gaskets but do not glue the downspouts or you will not be able to remove them for unclogging.
Use pvc cement to connect whole unsplit pipe using lengths of pipe joined by couplers.
The narrow strip is then cut into lengths and used to strap the gutter in position.
Then cut the top 1 3 to 1 2 of top of the pipe off.
They cut a narrow slit along the length of the pipe just wide enough for the corrugations to fit inside the pipe.
Pvc pipe that is 4 inches or more in diameter can be split lengthwise and used as a simple homemade alternative to a gutter.
Apply pvc cement to the outside of each end of the cut pipe and to the inside of the elbow and adapter.
They say it can t be done but it sure can just watch and see.
The slope of a gutter to the downspout should drop 1 inch for every 20 feet of run.