Pump up Sprayer/Foamer Question

Oneheadlite

Oneheadlite

New member
So, as a cheap little science experiment I`m looking at modifying one of the $7 big box store pump up sprayers to be a foaming sprayer.

Does anyone know what pressure most of the sprayers safely pump up to? My goal isn`t to try and max it out, it would just be to make sure I don`t grenade the thing. Part of the modification I was thinking about doing was adding a stubby tire valve stem so I could pressurize it with a digital/regulated inflator. I saw a how-to online where a guy had his set to 3 bar (about 45 psi).

I figure even if the foaming mod doesn`t work, be nice to not have to pump it 7,000 times for the initial priming.
 
I`ve got an inexpensive Chapin pump up foamer/sprayer. I think it said 40PSI was max pressure on it. Their better units (pro) are rated for 70psi.
 
Thanks for the info. I’ve found another small sprayer where it says it’s rated to 25 psi.

Since I’ll be putting a valve stem in so it will be easy to measure the pressure in the sprayer, I’ll report back what the 30 pumps the sprayer I have translates to for pressure.
 
Oneheadlite said:
Thanks for the info. I’ve found another small sprayer where it says it’s rated to 25 psi.

Since I’ll be putting a valve stem in so it will be easy to measure the pressure in the sprayer, I’ll report back what the 30 pumps the sprayer I have translates to for pressure.
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I guess if we don’t hear back from you we’ll know you exceeded the safe amount of pressure it can handle...������
 
cb804 said:
I bought one of these about a year ago... Kwazar Venus Super Foamer. It`s held up strong, outstanding quality, very well built. A little pricey but it gets the job done.

https://www.autogeek.net/kwazar-pro-super-foamer.html

https://www.youtube.com/watch?v=G2cLFiNoZVk
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I have 3 of the Kwazar’s. I had nothing but good to say about them when I got them. 2 of the 3 of these have split along the seam. Can’t give them a thumbs up with those odds. The sprayer works well.
 
I have three Kwazar trigger sprayers. Two of them failed in no time at all. Too bad cuz they were nice when working.
 
GearHead_1 said:
I have 3 of the Kwazar’s. I had nothing but good to say about them when I got them. 2 of the 3 of these have split along the seam. Can’t give them a thumbs up with those odds. The sprayer works well.
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tom p. said:
I have three Kwazar trigger sprayers. Two of them failed in no time at all. Too bad cuz they were nice when working.
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Is this the one you guys have? Its held up really well for me.
 

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DaveT435 said:
I guess if we don’t hear back from you we’ll know you exceeded the safe amount of pressure it can handle...������
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:D

I`m leaning towards staying lower end of pressures - like you say, I don`t need it to get any more exciting than it needs to. Also don`t want to risk scattering chemicals. It`s not like I`m just going to connect an air chuck to full shop line pressure - Going to be connecting it to a small cordless Milwaukee compressor that auto-sets the pressure for you. Should make quick work of topping it off to get started.

I do now have a morbid curiosity to buy another $6 one just to pressurize in a box and see what too much is...

GearHead_1 said:
I have 3 of the Kwazar’s. I had nothing but good to say about them when I got them. 2 of the 3 of these have split along the seam. Can’t give them a thumbs up with those odds. The sprayer works well.
Click to expand...

tom p. said:
I have three Kwazar trigger sprayers. Two of them failed in no time at all. Too bad cuz they were nice when working.
Click to expand...

That`s a bummer to hear they`re failing. Have you tried measuring the bottle neck/threads to see if you can find an alternative bottle? I`ve got a couple different style pump up sprayers I could check the necks on to see if they`d work as a replacement for you.
 
cb804 said:
Is this the one you guys have? Its held up really well for me.
Click to expand...

No, the ones I bought were the trigger sprayers with the double-action...they sprayed when the trigger was depressed and sprayers again as the trigger was released. Probably their entry level sprayer.
 
cb804 said:
Is this the one you guys have? Its held up really well for me.
Click to expand...



I have this one and one of their red ones and one of the black (chemical resistant) ones. These are all the pump up sprayers and not the double trimgger models. I always stored mine with pressure in the bottle. Perhaps this has something to do with the seam splitting. They don’t however hold much pressure.


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Oneheadlite said:
...That`s a bummer to hear they`re failing. Have you tried measuring the bottle neck/threads to see if you can find an alternative bottle? I`ve got a couple different style pump up sprayers I could check the necks on to see if they`d work as a replacement for you.
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I have tried to find another bottle but have not had any luck as of yet. I’m holding on to them.
 
I have one of those pump up sprayer bottles labeled for BlackFire. I bought it because my hand would get tired squeezing a trigger sprayer and thought these things only took 6 pumps give or take but was I wrong. I think it is more tiring pumping the dang thing up then a regular spray bottle. For that reason I hardly use it. I had been thinking about getting a valve stem and drilling a hole through the upper portion and maybe using the bicycle pump I have. I figured the air compressor might be overkill since my air chuck is the locking type that can latch onto the valve stem. My luck it would stick and blow apart so I have yet to try that idea of the valve stem.
 
GearHead_1 said:
I have tried to find another bottle but have not had any luck as of yet. I’m holding on to them.
Click to expand...

Hopefully I didn’t come across as trying to thieve your broken sprayers!! I just meant if you post up the bottle specs maybe we can source some replacements.

skibik- The bunch-of-pumps required is a big reason I’m trying to find out safe pressures. If you’ve got a low pressure pump/inflator, seems like being able to fast forward to pressurized sprayer sure would be nice.

Ill try and get a valve stem snapped in tomorrow and report back what 30 pumps of the sprayer I have equals for pressure.
 
As promised - Took my pump up sprayer (56oz Flo Master, $6.62) I use at work for degreasing and added a stubby valve stem.

Their website lists 20-30 pumps to pressurize. I filled the fluid to the top line to have the least amount of air to compress. Did 30 pumps and checked the pressure - 40psi.

Since it`s just filled with water, I took my tire filler connected to our 130psi shop air and gave it a few very brief blips - 40psi. Do this at your own discretion, my filler can do a pretty light creep for air flow; and keep in mind for the price they make these things for I`m sure bomb proof quality wasn`t first on their design priority list.

I have a different model sprayer at home I`ll bring in, do the same thing, and report back. That sprayer is a better match for the videos online where people mod them to be foaming sprayers.
 
GearHead_1 - Flo Master bottle neck: 1 11/16" measured at the outside of the neck (not threads), 1/8" between the peaks of the threads. I`ll check the other bottle tomorrow.
 
Off-topic: That compressor setup sounds like mine, great for use with a Lonn Cleaning Gun. Gee, is that psi considered high for a Shop? Mine`s right around there (a bit higher but doesn`t maintain it under full draw).
 
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