Bests & Worsts Reviews from Amazon

I've had the mop for about 6 months. You can drill a small hole towards the top of the cartdridge, fill the solution with a funnel and use a small cork to fill the hole. I have done this 3-4 times and it works great. I bought a 1.25 gallon refill which works out to be about a tenth of the cost vs. the cartdridge cost.