Windshield washer bottle questions

Hello. My 70 Duster does not have a washer bottle at all. My questions on getting some water/washer fluid to my windshield:

1) There are 2 rubber hoses coming from my manual foot pump to the washer bottle area. DO they both get hooked to the washer bottle? Or just the big one?

2) SHould the washer bottle have 2 spots to hook up hoses for the manual pump?

3) If I go with a more recent washer bottle with an electric pump on the bottom, will it work with my current wiper switch?? I've noticed that the switch can be pushed in, does this pump water up with the motor if I hook it up right?

Thanks for any info.
The Big E