I know there Saiger videos for butler! But does butler wave a water box to add the descaler? The pro 1200 has no water box ! I know the 570’s water box with the radiator pressure relief cap you lower the water put a gallon or two in the machine and use a loop hose from the intake to the water pressure out! And kinda sprinkle the descaler into the water box slowly. Let it run 15 minutes and flush with water 5 minutes and detergent another 3 minutes! So I’m wondering do you use the chemical jug and use a loop hose on a pro1200? And just meter it at 10 and let it loop?