Roundup 181538 Sprayer Parts Repair Kit

After 4 years of use my sprayer started to lose pressure making it near useless. Decided to try replacing seals before investing in a new sprayer. Glad I did. It was easy and quick and now it works like new.

Great replacement parts

I purchased 2 of these Round Up 1 gallon hand pump sprayer repair kits. The one way check valve on the bottom of the hand pump is an exact fit and seals the bottom of the hand pump by preventing air and liquid from entering the hand pump . The smaller of the 2 O-rings that fits near the bottom of the actual pump handle is an exact fit. It doesn’t allow air and liquid to escape into the hand pump itself. The smaller rubber gasket that fits on the outside of the Hand Pump. That seals the hand pump to the 1 gallon tank Is an exact fit. No air escapes and seals the hand pump to the 1 gallon container perfectly. First I took apart the hand pump. The instructions to do so for a Round Up hand pump sprayer are printed on the back of the repair kit. Then I cleaned the inside and outside of the hand pump and the 1 gallon tank with dish soap and a bottle brush using hot water from my kitchen faucet. I dried the inside of the hand pump using 2 paper towels. Then I applied some silicone grease to the top edge on the inside of the hand pump. I applied a small amount of silicone grease to the O-ring,one way check valve and to the gray rubber seal.I picked both of the 1 gallon Round Up hand pump sprayers out of the trash. All both of them needed was the Round Up Hand Pump Sprayer repair kits. By Picking the sprayers out of the trash. It Prevented them from going to the landfill. The kit even comes with an adjustable sprayer for the end of spray wand. The cost of the repair kits are very reasonable. My old hand pump sprayer has a stainless steel tank and it started leaking. I did weld the area it was leaking with stainless steel welding rod. Now I’ve 3 hand pump sprayers. Allowing me to use each individual sprayer for cleaners, insecticides and Round Up weed killer. I only use round up when absolutely necessary and only enough for the job.

Based on the review of another here, I thought I would give it a try.This package (Roundup 181538 repair kit) clearly indicates the two sprayers that it is intended for... Roundup and Ortho with ML & 'O' style tanks so no surprise that it is not an exact fit.My sprayer (2016 Smith Contractor 190216-2 2 gallon) had a hard time creating pressure (x100 pumps for minimal pressure) but once pressurized, it seemed to hold for the current job. The package contains 2 different 'O' rings... the smaller of the two looked to be too small and the larger was bigger than the original. I installed the larger and although it is a bit sloppy, it works great. The smaller one MAY work too but I just wanted a tighter fit inside the pump walls. Now, each and every pump pressurizes the sprayer. I also replaced the check valve located at the end, just for good measure. I do bleed the system after each use so I may never notice the potential improvement. I did not try or use any of the other replacement parts.I have a fully functioning sprayer again. The weeds never saw see me coming :-)

I wasn't sure the nozzle would replace what I have used for years but it did. After testing the nozzle and being happy with how easy it is to change the spray pattern I plan on replacing the other parts with what came in the kit. With that said I am happy with my purchase.

Perfect fit brought my 3 year old sprayer back to like new condition

Perfect remedy for my sprayer with prostate problem. Worked great and got the spray power back!

It works. If you have different type bottles or size bottles it works