Sporlan,water fill/location

[Tom Seitz]

I have heard and read alot about the sporlan valves and water fill
valve.Are they one in the same? It takes a little bit for my water
fill to stop filling when I flip the switch so i think it needs
cleaning.Before I could here it stop filling, and could tell it had a
good seal but now it slooooows and then finally stops.
Can anyone tell me where this or these valves are located on a 90
SP36? Thanks Tom 90 SP36 Alpharetta GA