Mayfair Switch 2 wire versus 3 wire

[airhog]

I am a little confused and need some help. I curently have a mayfair bilge with a mayfair model #36172 3 wire switch. The switch no longer works for auto bilge and I always need to visit the boat to manually turn on the bilge.
Problem is that I can only find a 2 wire switch to purchase and not the original 3 wire that I have. Can I use the 2 wire switch in place of the 3 wire and still have my manual override work from the helm. I like the manual switch for those just in case times and bilge testing.

Any help is appreciated.