When deep cleaning your toilet turn off the water to it, let it drain, then let the toilet dry or use an already-in-the-laundry towel to dry it. Then put the cleaner as directed in the toilet. Use the directions of the cleaner to finish! Turn back on the water and should fill on its own.
I figured this out while I was pouring the cleaner in the bowl and it wasn’t getting it cleaned. Here in south Texas we get calcium build up and have to use a calcium cleaner. Anyway, the cleaner was being diluted by the water therefore I was having to use more cleaner but still wasn’t getting the results I wanted.
I hope this was helpful.