Use this downspout extension to divert water away from the foundation or connect to drainage pipe and catch basin to control drainage.
Underground gutter drain pipe size.
The drainage pipe used for extending downspouts is non perforated schedule 40 pvc pipe with 4 inches diameter.
For home use it comes in diameters ranging from 1 1 2 to 4 inches lengths are generally 8 or 12 feet long.
Some builders consider that if they use perforated 4 drain pipes to transport roof drainage away from the building the water will soakaway harmlessly into the soil even if the end of the buried drain line is blocked or never taken to daylight.
Fittings can be permanently welded to the pipe with pvc cement.
For our installation we used it to snake around a few large boulders we couldn t pry out.
It s a well accepted fact that excess rain water near the foundation of a home is an invitation to a wet basement.
But houses with big steep roofs or those located in climates prone to heavy downpours may need wider gutters and extra downspouts to keep rainwater from overflowing.
Also the catch basin and emitter will need 4 to 6 of gravel under the base so dig a deep enough hole at both of these places to hold the basin and 4 to 6 of gravel.
Five inch k style gutters or 6 inch half rounds the most common residential sizes are able to handle the rainfall on most houses in most parts of the country.
Smooth 4 inch diameter plastic sdr 35 sewer pipe is the material i prefer to use.
Some jobs will also require flexible drainpipe which is invaluable for getting around obstacles or following uneven terrain.
To do this i cut the black corrugated pipe added a t and aimed the pipe upwards to the downspout.
For the garage i used a downspout adapter without a leaf guard since there aren t trees close enough for that gutter to get clogged up.
Since my in ground pipe ran right past the garage i had the garage downspout dump in as well.
Polyvinyl chloride or pvc pipe is used for both sewer and vent pipelines.
The flexible design easily bends and holds its shape and can be extended from 25 in.
The pipe sections are tough and durable and they join together using couplings primer and cement.