Roundup Sprayer I can't get the sprayer to work at all. The batteries are working fine, because it runs but nothing comes out of the bottle.

SOURCE: Proper mixture ratio for roundup weather max commercial grade.

2 ounces per gallon. you can convert gallons to liters on the net.

SOURCE: I can't get the Roundup Professional Sprayer to

Put a little wd-40 or light oil down in the plunger shaft to get the leathers on the pump plunger to seal back against the cylinder wall. Work it a little and u will feel the pressure come back. Maybe some dish soap would work too if u like bubbles.

ballping

SOURCE: I have 2 sprayers one

Um what do you mean by not working. spray not killing weeds, or sprayer itself not working???
Sprayers clog up if not cleaned after each use, try cleaning the entire sprayer.

SOURCE: how do you refill roundup

Any Roundup Weed & Grass Killer RTU can be refilled with the new 1.25 gallon Roundup Weed & Grass RTU Refill bottle OR use Roundup Super Concentrate (purple cap).

Directions to Refill with Roundup Super Concentrate

• 24oz RTU: 1 oz of RoundUp Super Concentrate, fill with water very slowly to avoid foaming.
• 1/2 Gallon RTU: 2 1/2 fl. oz. of Roundup Super Concentrate and slowly add 1/2 gallon of water
• 1 or 1.1 Gallon RTU: 5 oz RoundUp Super Concentrate, fill slowly with 1 gallon of water
• 1.33 Gallon (PNS & PNG): Add 6.5 fl oz of the Super Concentrate to container and slowly fill with water