I’d suggest running two separate lines, one for the Polaris font, one for the two Jandy deck jets. Put a 3-way Jandy or Compool valve between them to adjust flow to one or both. A loop joining the Jandy jets and the Polaris font wouldn’t work.

BUT the line going to the Jandy deck jets needs to be split into a balanced manifold: the main line feeding them goes to tee, then to each jet … but each side of the tee must contain the same number and type of fittings and the same length and layout of pipe (this is assuming the two Jandy jets are at the same elevation). A balanced manifold like this ensures equal flow to each jet.

Hope this helps.

I tend to like manual fill for most jobs. The typical toilet-tank float valve type of autofill usually does OK, but sometimes has problem with debris in the water supply wedging it either open or closed. This can be a problem if wedged open (always on, usually at a trickle), filling the pool to the overflow line, where it then drains the excess to waste. The next water bill can be a shocker. So I like to keep things simple and reliable — manual fill.

For manual vacuuming, it doesn’t really matter where it plugs in, as long as you have sufficient suction. If you’re referring to how to hook up a suction-side pool cleaner, like a Kreepy Krauly or Barracuda, I would definitely recommend a separate, dedicated line, running from somewhere near midpoint of the pool back to a blending valve (Jandy or Compool three port valve) at the pump inlet.

Also is it better to have the hook up for a vacuum on the side of the pool wall or in a skimmer?