What pump/sprayer everyone using and any damage from knf usage?

iv been using hand pumps and hose end sprayers and never had a issue with the sprays the salt water is very diluted even in the soil soak …iv had copper soap and neem oils clog my sprayers in the past… i just got this yr a electric hand sprayer from SunJoe that im using the KNF solutions in this yr and retiring the old one to IPM sprays so i dont worry about clogging my new sprayer  i know drake uses a large pump sprayer on his farm attached to the back of a car he mentions what brand he is using in a few vids but i cant remember but i would think anything rated for fertilizer spraying would be ok they would be tested to run salts and harsh chems like MGrow through them just fine so the KNF solutions r like water compared to that sort of stuff when it comes to the sprayer

I use a Maruyama MS75E Sprayer when on foot, and then I use a 50 gallon Gearmore Sprayer with a diaphragm pump on my tractor.

By the time the solution is diluted, there should be no problem of the pump degrading from salts. Especially if you flush it out with clean water after use.

I just had to replace the diaphragm on the tractor sprayer, but that is because it ripped after nearly 10 years of use, and I also had to do some work on the Maruyama to clean out the exhaust screen, but no issues with the pump unit at all as long as they are not run dry.