hi.. i need help.. i'v just got a new bilge pump but no instructions..i got 3 wires 1 negative.. and 2 positive .. 1 of which gives constant live.. and the other when connected seperatly just gives a short blast then nothing..i'v run the pump submerged to see if it only runs when needed and no change.. the pump is a rule 1100gph fully automatic..any help appreciated .... chris...