I took the fill hose off of the cheapo pump and sealed it on to a 1 gallon push down hand cleaner pump and cleaned out the gallon bottle. Cost nada. Works well but don't get carried away pumping. I have to go slow with it but it works well. You would think that Merc would sell it in a gallon jug with a pump all set to go but I guess that makes to much sense.

Do you have to buy a gallon of hand cleaner to get the pump?

Just to be clear, talking about the tiny plastic hose that goes inside the tank. See link:

http://store.thefountainheadgroup.co...1-Gal/P3910_1/

I bought a 1 gallon chemical sprayer from Walmart for like 12 bucks. Cut the nozzle off about 4 inches from the end.Take the hose from your current pump and push it over the wand the trigger is a spring loaded valve that can be positioned to stay open or held by hand. When your reservoir is up to level let go of trigger works awsome.

https://goo.gl/photos/F1aJAjnoHnpTXjN77


Pump it depresserizes by unscrewing the pump handle until seal comes free

Gear oil pump
 

Walmart chemical spayer