Here's a way for a DIYer How to retrieve your drain rods
Channel: Unblock my Drain
Date: 2020-08-30

How to retrieve your drain rod is a quick video and shows a simple alteration made to a universal drop scraper, to help with the attempt of how to retrieve your drain rod.
If you have a drain rod stuck in your sewer and you'd like to get a drain rod back, you will find this useful.
Welcome to, Unblock my Drain.
In these videos, I will be adding my progress from unblocking drains, 
and i'll be going through some of the equipment and products that I use.
If you like or enjoy what I do, then please Like, Share, and subscribe to my channel.
Thank you for watching.
Why you need to get a drain rod back from the sewer... they can add or cause a blockage very quickly. If you can't get a drain rod back, call your local drain expert to help.
Here is a simple way to get a drain rod back, without using the worm type attachment that is sold separately.
1) Take a universal drop scraper, and using an angle grinder,  cut off the 2 sharp corners at the top, making easier access through the drain.
2) Measure 20mm in the centre of the drop scraper, and cut 2 slots either side of the centre, about 25mm long.
3) Then take a pair of pliers or mole grips, and bend the cut section out, and cut off with angle grinder.
finish off with a file, removing any sharp edges.
The threaded ferrel on the rod is around 22mm, so make sure you cut a 20mm gap, or it may not work properly.

Why Drain Rods Get Stuck Or Lost?
Drain rods are available from most DIY and hardware stores.
They often provide a quick, short-term solution to smaller drain blockages for residential homes.
While you can do-it-yourself, I would recommend contacting a specialist to provide a 
drain rodding & water jetting service, to ensure the entire blockage is removed safely.

The main cause of drain rods becoming lose and detached during the drain clearing process 
is that they simply un-thread themselves. 
The rods simply screw together and all that thrashing about in the drain can cause the rods to spin and undo. 
Unfortunately twisting the rods anti-clockwise unscrews them, and 9/10 it will be 
the joint halfway down the system that separates first, and leaves you holding just three of the six rods you started with.

Chapters
0:00 intro video
0:13 how the Drain rod retrieval tool works
1:39 Job done

how to retrieve your drain rod,
how to retrieve my drain rod,
how to retrieve a drain rod,
retrieve my drain rod,
retrieve my lost drain rod,
get a drain rod back
get my drain rod back
get your drain rod back
how to get my drain rod back
This is how you can - get a drain rod back,
drain rods stuck in pipe,
universal drop scraper,
angle grinder,
how to retrieve your drain rods,
retrieve your drain rods,
retrieving drain rods,
DIY drain rod retrieval tool,
Drain addict
unblocking drains
homemade drain rod tool,
homemade drain rod retrieval tool,
simple drain rod retrieval tool,
drain rod retrieval,
how to get back your drain rods,
how to get your drain rods back,
get your drain rods back,
diy get your drain rods back,
simple way to get your drain rods back,

Bailey 1741 4-Inch Uni Drop Scraper - https://amzn.to/31Gx735
Bailey Lockfast Retrieving Tool - https://amzn.to/32BXPJn
Bailey 5431 Universal Drain Rod Set in Carry Bag (3 Pieces) - https://amzn.to/2YOGgVo

ToolTronix 500W Electric Angle Grinder 115mm 4.5" Heavy Duty Cutting Grinding 240V UK - https://amzn.to/2YKVPgG

Bosch 2608600318 - Straight Cutting Disc - Metal A 30 S Bf, 115 Mm, 2.5 mm (pack of 1) - https://amzn.to/31GxQRR

Disclaimer - These products are affiliate items, but I only choose the best value for money items.