If the clog is deep and compacted, you may need to take the downpipe apart. Tap along the pipe with a rubber mallet; a solid, thudding sound indicates the location of the clog. Use a screwdriver or socket set to remove the brackets and clear the section manually.
Before starting, ensure you have a sturdy ladder placed on solid, level ground. It is often best to have a second person nearby for safety. how to unblock downpipe drain
Insert your garden hose into the top of the downpipe and turn it on full pressure. If the clog is deep and compacted, you