Which switch do I need DPST Simer Reversable pump?

Got the simer bw85 pump, which switch do I need to make this work DPST STDP STSP DPDT? Those are my options from waytekwire.com I think I need the Double Throw Double Pole but I am not sure? Also does anyone have a diagram on how to wire up the pump and switch? I did a search and found some diagrams but there seems to be some confusion on the "right way" Also I don't want to run any relays just 10 gauge wire and 20 amp fuses. Feedback is welcome thanks.

DPDT

This is how I reversed the dc motor on My Simer self-priming pump. Does this help?

Ops..

yes Trace is right DPDT but I found I needed 25 Amp fuses. The 20's blew all the time

Thanks guys I think that awnsered my question.

Here is a diagram that Stan Tanner sent me last year when I was having trouble getting mine going.

It's pretty staight forward.





-Bo