I bought a pump so I can recirculate wort during mashing in my electric BIAB kettle. Since I use a bag for grains, I don't want to circulate it through the side, so I am planning on porting my kettle lid and pumping back in through there. Pretty much this, only I'm building myself. https://www.clawhammersupply.com/collections/all-products/products/digital-electric-120v-homebrew-beer-system
Clawhammer's kit uses a little sprayer nozzle on the inside of the lid, which I haven't been able to identify or find online. I saw some other options for NPT-threaded sprayers, but I'm not sure about how they'd work for my MK II pump pressure or my small (8 gallon) kettle. I've also seen some discussion about potential for HSA with sprayers in any event (swear jar for saying HSA, I know, I know).
My mash is usually as close to full volume as I can fit in the kettle anyway so thus pretty thin, so my question is, do I need to even bother with a sprayer for circulation through the lid? If not, that makes my life a lot simpler but I don't know if there are any drawbacks to just letting it dump through the bulkhead at full flow. Do I need to run a ball valve after the pump outlet to slowdown flow and prevent making a huge mess?