Hello; Wasted water is a thing to consider. My understanding is that to create enough initial suction to get a siphon started you run a considerable volume of tap water down the drain. I get that it makes moving the water less physical so if wasting water is not a concern then go for it.I end up wasting a little too much water trying to speed it up a bit. Once the suction is started you can turn the water off and it’ll empty the tank
Hello; Did it that way for many years and got a mouthful of tank water from time to time. last years I have started a siphon another way. I submerge most of the hose/tubing in the water and let it fill up. Place a thumb over an end. Move that thumb out of the tank and into a bucket and let gravity start the siphon.suck the other end and water will start flowing out.