Suggestion

We love our puddles be gone and have used it for a couple of years. We struggle with keeping the water reserve bottle clean. We have well water and even with a water softener our bottle still looks very rusty. We can’t figure out anything that we can get in the small opening to wash the bottle, particularly on the sides . We have tried everything we can think of. I can get cleaner tablets that I know work if I can just get in there to wipe it away. A suggestion might be to have to flat end be a screw off top as well so that it can be washed completely. Thank you, Debbie Hendricks