The minimum gutter fall to a downpipe is 1 500 meaning an extra 2mm of fall for each metre of gutter.
Fitting downpipe to gutter.
Ensure a 6mm gap is left at the top of the downpipe for expansion.
Measure from the gutter to the wall of the house and then from the gutter to the ground.
The offset bends can be push fit using a pipe clip ensure a pipe clip is fitted under the socket on the pipe immediately below the offset.
Guttering should use either a round or square downpipe.
You re ready for fitting your downpipe.
To attach round downpipes to square gutters you must use a sq rd downpipe adaptor.
If your gutters overflow regularly during heavy rains you may want to consider adding an extra downspout.
Its easy less than 30 minutes and under 30 00 in parts.
Watch and learn how and stop.
You can add a downspout to your gutters with little difficulty.
The amerimax home products flex a spout downspout extension has the amerimax home products flex a spout downspout extension has a rigid corrugated design for versatility.
Featuring durable vinyl construction this extension can be buried bent or connected to additional sections.
Make sure you mark this straight drop on the wall showing where the downpipe will be.
The downpipe will probably require a couple of offset bends fitting just below the gutter outlet so the pipe can be fixed against the wall.
Again as with the gutter this can be cut easily with a hacksaw and deburred with a half round file.
Your gutters must comply with national plumbing and drainage code as nzs 3500 3 2003 which you can find in your local library.
Before buying talk with your supplier to ensure the gutter system you have selected meets the criteria.
Find downspout components at lowe s today.
You ll need to use your plumb bob again dropping it through the outlet to give you a perfectly straight guide down the wall.
Locate where you want to place your new downspout.
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