My suction and return 3 way diverter valves are the old Ortega style. The suction side seems to still function properly but the return has all kinds of issues. For one it is terribly difficult to turn, often to the point where it feels like the handle will break, despite the fact that it isn't turned all the way yet. It also seems not to divert the water properly or, at least, completely in the direction you set it. When I turn the valves both to spa and turn on the heater I can still feel a fair amount of warm water coming in on the pools return pipes. I suspect that the inside of the valve is all screwed up and is causing it to route the water improperly as well as causing the difficulty in movement.
So it seems like this valve needs to be replaced. Any recommendations on what to replace it with? Also these valves are below the pool level so how do I stop the water from pouring out when I cut the pipe to replace the valve?