peeing EVERY NIGHT

[redruby]

This Darn dog of mine will NOT Stop peeing on the floor at night. I take him out to pee before bed and make sure he does and STILL PEES ON THE FLOOR. last night he pood as well. I am getting fed up. I don't know what to do. I took him to the vets a while ago and he had an infection but it went away (the infection) cuz his pee was clear and now it isn't.
WHAT DO I DO???