The primary use for the pump is during whirlpool chilling, but the garage set up is single burner so I use the pump to move strike water into the mash tun and sparge water into two coolers. The small cooler is actually a mini-mash tun that is doing duty as a HLT, the rest of the sparge water is added from the 2nd cooler when it runs low.
The backyard setup utilizes a 7.5 gal kettle as the HLT:
This is the system during chilling, a pond pump in an ice bath helps when I get below 100f
The pump is also used to transfer wort into the fermenter, a ball valve keeps the flow rate down to avoid disturbing the cone:
So I really do want a two burner stand at first and to move up to 10 gallons as the next step. I need it to be in-line (narrow) and on casters.
The sparge arm worked out well, I have batched sparged and that worked too but got comfortable with fly and prefer it so this was a good addition to the system. The brackets are funky, need improvement but functional. Here the underside of it:
And one more shot of it in action: