How do I descale my Breville BKC600XL - Breville BKC600XL Coffee Maker

Why not just fill the tank with vinegar & run it through as per the manufacturers instructions

I buy descaler from restaurant supplies or janitorial supplies   they work on dairy equipment, coffee urns, steam irons, faucets, shower heads, sinks, toilets bathtubs, showers, water fountains etc.   place inside the water compartment and run as usual  it turns to near boiling but will go through the system  rinse several times by making pots of hot water and dispose of the water until you are sure it is safe to drink again   descaler will discolor chrome and other metals so use caution  CLR is a similar product for home users  just 10 times the price

This isn't a solution, it's a question...so I descaled an entire water reservoir and it still isn't working right and its leaking from inside out thru the bottom. Augh!! Anyone???