If you are experiencing low pressure output from your sprayer and have ruled out any other parts as the cause, the impeller coupling may have lost its seal, or the impeller itself may be damaged, clogged or broken. In some cases, the pump may be disassembled and cleaned to fix the problem.

The piston automatically retracts after each spray, creating a vacuum in the chamber that sucks more fluid from the bottle though the tube. If your sprayer doesn’t work, it’s either because the nozzle is blocked, the piston seal is damaged or the inner tube isn’t immersed in fluid.

I put almost boiling water into the container and sealed it without adding pressure. I put the clogged end of the nozzle into a jar of alcohol. When the hot water cools, it will create suction. Hopefully enough suction to pull the alcohol into the end of the tube and dissolve or dislodge whatever is stuck in there.

To operate the pump (D), unlock the pump handle by turning counterclockwise. Be careful not to loosen the pump (D) from the tank (A). To create pressure, move the pump handle up and down until it is hard to pump. Lock the pump handle back into the pump assembly (D) by turning clockwise.

Push the pump handle all the way down and turn counter clockwise into the locked position. Continue to turn the pump handle counter clockwise until the entire lid starts to turn and unscrew. This can be difficult sometimes if the lids are put on very tight.

Yes, and Roundup sells handy and cost saving refill packs. Refill your Pump ‘N Go Sprayer push the pump handle all the way down and turn counter clockwise into the locked position. Once you have unscrewed the lid completely you can then remove the pump from the bottle and refill it. …

How to Refill Roundup Pump ‘N Go Sprayer

1. Push down on the pump handle and turn it counterclockwise until the handle locks into position.
2. Keep turning the pump handle in a counterclockwise direction until the lid becomes completely unscrewed.
3. Refill the bottle with the herbicide product designated on the Pump ‘N Go spray label.

For Roundup Weed & Grass Killer Concentrate Plus, mix from 3 ounces, or 6 tablespoons, to 6 ounces, or 12 tablespoons, concentrate with 1 gallon of water. For Roundup Weed & Grass Killer Super Concentrate, use from 1 1/2 ounces, or 3 tablespoons, to 2 1/2 ounces, or 5 tablespoons, per 1 gallon of water.

Answer: For most applications, 1 gallon of mixed RoundUP QuikPRO will cover 1000 square feet.

Application Rates & Timing

Mix 1.5 ounces (3 tablespoons) of herbicide to 1 gallon of water to renovate an entire lawn, or to eradicate weeds and grasses that are easy to kill. For tougher jobs, such as vines or perennials weeds, mix 2.5 ounces (5 tablespoons) to 1 gallon of water.

Answer: Mixtures of 2,4-D and glyphosate (in other formulations) have been used successfully for weed control in various systems for many years. Glyphosate + 2,4-D is still the standard herbicide mixture for fallow weed control in many dryland areas.

three days

When using Roundup PowerMax II Herbicide in 25 gallons of water you can use anywhere from 13 fl oz to 7 quarts.

44 gallons

50 ounces

Mixing at 4 ounces per gallon is a waste of chemical & $. Mix according to instructions.

Mad Dog Plus, a water soluble liquid, mixes readily with water for application as a foliage spray for the control or destruction of most herbaceous plants. This herbicide moves through the plant from the point of foliage contact to and into the root system.

MAD DOG PLUS is a postemergent, systemic herbicide with no soil residual activity. It is generally non-selective and gives broad-spectrum control of many annual weeds, perennial weeds, woody brush and trees.

Swallowing products with glyphosate can cause increased saliva, burns in the mouth and throat, nausea, vomiting, and diarrhea. Fatalities have been reported in cases of intentional ingestion. Pets may be at risk if they touch or eat plants that are still wet with spray from products containing glyphosate.

See Mixing, Section 6.0, for instructions. Time to Symptoms: This product moves through the plant from the point of foliage contact to and into the root system. Visible effects on most annual weeds occur within 2 to 4 days, but on most perennial weeds may not occur for 7 days or more.