Sooteater rods

has anyone found a poly brush with button lock? I have a Sooteater, rods are white and button lock. I'd love to just button in a poly brush to those rods and sweep it that way instead of using the drill and whipping it. I've only found a threaded poly brush. Being cheap and don't want to buy another set of rods.

 

Kinda surprised they put a 90 at the bottom of your liner instead of a tee with a capped section of liner dropping down to the old cleanout below. I suppose it might be a special situation, would be hard to drop the liner with the 90 installed. I hope to never have to use a liner again! Class A pipe is nice.

The way you describe it make it a top down cleaning chore. I would just use a tight fitting poly brush and the regular fiberglass rods.