Hi,

As you see in picture I need advice in cleaning method for that kind design of pipe, actually I have met a challenge in cleaning coke for pipe furnace boiler with detail pipe is U bend in total length approx 16 mt and size 6". I am considering to use two method but still i have hesitancy in result :

- Badger nozzle from Stoneage but with that length I have hesitancy hose will get stuck after through several U bend

- with sponge ball but cannot make sure if this can detach coke inside pipe.

if you have advice it would be appreciated, thanks.