Capacitor for 1hp submersible pump

I converted my house about a year ago to city water and would now like to run the irrigation off the well. The current pump is a 1/2hp 5gpm pump thats been in the well for over 30 years, the new pump is 1hp 25gpm. The old pump and new pump both need a control box to run, can I use the old control box and just switch the capacitor. Do I even need to switch the capacitor?
Also I found a wx-252 a while back on craigslist that I thought I would use as my holding tank. Do I even need a holding tank if the well will be used only for irrigation?

Thanks

I would make sure that the cap matches the pump motor winding.

And using the tank would be better than no reserve.

I do believe that Having the tank would make the system perform better, and last longer.

Have a great day.



DonL

Use the tank rather than a pump start switch or better yet to extend the life of the pump and keep it from cycling install a Pside-Kick http://www.cyclestopvalves.com/pdf/psidekick-brochure.pdf .

You will need a new control box.