I was recently given a leisure bay proshield hot tub. It did not come with a manual. We have connected it but have a question on one connection to the filter. At the bottom of the filter container a hose that hooks there we don't have any idea where it goes. It is under pressure because it shoots out water. Right now we have it plugged off but can anyone tell us where we need to connect it? We thought maybe it went to the filter indicator that has electrical wires coming out, but the indicator leaks. Are we right? And the indicator is broken?

Pics would help greatly, as there is no such thing as a " filter indicator" on your spa.
At this point, i can only suggest that you do not stick a leaky hose anywhere near an electrical connection.