Python employs Venturi principle to start siphon at ease and once started, you ought to relocate the discharge end to a low place to drain the tank. But for a 50 ft hose, it will take 5+ minutes to start siphon and water is lost during the start up time. It’s easy to suck a 5 ft hose to start siphon, not so with a 50 ft hose unless you have a whale mouth. Besides, what’s the point of having a python to start siphon at ease.Water is only wasted if you keep the water on after starting the siphon. Desides, eou don't need the sink to start the siphon. Just rinse the end of the hose and do a quick suck. Gravity will pull the water out as long as the gravel tube is higher than the hose end.
You better make sure that you can put a hose adapter on the faucet that you will be doing a refill first. Otherwise, you will be stuck looking for hose extensions.
Python employs Venturi principle to start siphon at ease and once started, you ought to relocate the discharge end to a low place to drain the tank. But for a 50 ft hose, it will take 5+ minutes to start siphon and water is lost during the start up time. It’s easy to suck a 5 ft hose to start siphon, not so with a 50 ft hose unless you have a whale mouth. Besides, what’s the point of having a python to start siphon at ease.
I’m an idiot!View attachment 1477807
You may need it if you have low tanks like I do. This is where I use it on the bottom three tanks that are only like 10" off the ground
View attachment 1477808