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Old 02-28-2019, 10:13 PM
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Default Looking for a pump solution

At work we use restaurant grease for a few different things. We have our own truck and tanks we pump out.

When we go to unload the truck we use a pneumatic diaphragm pump to unload the truck and transfer to our holding tank.

We end up with trash in the truck and the pump can't handle it.

Is there a such thing as a grinder pump with a npt inlet and outlet? My thoughts is that the grinder pump will grind up any trash (paper towels and latex gloves and whatever is scraped off of or out of fryers) and then the strainer on the outlet of the holding tank will catch the ground up trash. We use 2" cam lock hoses to go from the truck to the tank.
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Old 02-28-2019, 10:44 PM
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Quote:
Originally Posted by OldRedFord View Post
At work we use restaurant grease for a few different things. We have our own truck and tanks we pump out.

When we go to unload the truck we use a pneumatic diaphragm pump to unload the truck and transfer to our holding tank.

We end up with trash in the truck and the pump can't handle it.

Is there a such thing as a grinder pump with a npt inlet and outlet? My thoughts is that the grinder pump will grind up any trash (paper towels and latex gloves and whatever is scraped off of or out of fryers) and then the strainer on the outlet of the holding tank will catch the ground up trash. We use 2" cam lock hoses to go from the truck to the tank.
Put a screen in the outlet between two valves, them you can clean the trash before it gets to the tank.
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Old 02-28-2019, 11:57 PM
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What about a screen inline when you’re loading the truck?


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Old 03-01-2019, 12:13 AM
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Quote:
Originally Posted by OldRedFord View Post
We end up with trash in the truck and the pump can't handle it.

Is there a such thing as a grinder pump with a npt inlet and outlet?
The answer is yes. Grinder pumps are used in sewage. I used one in the past that pumped shit and ground it up and sent it to our treatment plant.
They are designed, because of the grinder, to be operated inside a box, so the intake does not have a pipe thread. discharge is 2 inch threaded pipe.
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Old 03-01-2019, 11:17 AM
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Here is another option, I have seen these operate, a big string mop head and a pair of blue jeans were not an issue.

Another option.

Sit down when you price this stuff.

Scott
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  #6  
Old 03-01-2019, 01:21 PM
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The common name for the type of pump you are looking for is a
macerator pump. They come in various sizes. Like stated above
sit down when getting quotes.

I detest diaphragm pumps...
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Old 03-01-2019, 01:48 PM
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Do you screen the food grade before putting in product ? I understand the pain of prefilter before putting in tank truck .With all the biodiesel folks what is the competition of getting the grease .
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Old 03-01-2019, 05:27 PM
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google "muffin monster" its another alternative. Way pricy too.
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Old 03-01-2019, 07:38 PM
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Just build a little catch tank to go between the truck and the pump. Fluid comes in open inlet pipe. Line to pump has screen. The lid is held on with dogs so it can be opened and cleaned out. My Amish Cad is shitty but I think you will get the gist of it. I figured I better explain a little more on this. A inline screen the size of the hose will clog in about a minute. A 20-30 gal catch tank lets the nasties flow around in the tank while the pump keeps running.
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Last edited by Whitetrash; 03-01-2019 at 08:32 PM.
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Old 03-01-2019, 08:56 PM
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Quote:
Originally Posted by Whitetrash View Post
Just build a little catch tank to go between the truck and the pump. Fluid comes in open inlet pipe. Line to pump has screen. The lid is held on with dogs so it can be opened and cleaned out. My Amish Cad is shitty but I think you will get the gist of it. I figured I better explain a little more on this. A inline screen the size of the hose will clog in about a minute. A 20-30 gal catch tank lets the nasties flow around in the tank while the pump keeps running.
Cheap fix for the problem.
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