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WVO Provider using filter and additive to extend oil life

1655 Views 6 Replies 5 Participants Last post by  a93bowtie
My main provider just bought a filtration system to extend their use of the oil. I remembered reading here something about an additive they put in when doing this. I asked him about it and he said he has to add some powder to the oil after filtering and recharging to the fryers. He didn't know much about the powder.

Do any of you know what it is or if it will cause me any problems?

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That was easier than I thought it would be.

Metro Supply- guy said he thought it was Diatamacious (sp?) Earth or crushed fossil material with the intent of simply attaching itself to impurities (somehow?) to improve removal via filtration. However, he wasn't certain and gave me the number for Frymaster's tech support. He also said he remembered selling the system but couldn't remember what micron level of filtration it had cuz they're not all the same and he didn't remember their model number.

The fellow at Frymaster said the generic name of the ingredient was Expanded Pearlite. I know I've heard of Pearlite before but can't remember where. He also said the 'technical' name was Sodium Potassium Aluminum Silicate Gel.

I don't know for sure, but it seems to me this stuff shouldn't alter the chemical make up of the oil. I should be able to filter it out easily enough at my current 0.5 mic filtration.

Any thoughts?


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DE is used for pool filtration, can be bought in big bags at pool surpliers, add so many lbs per filter area. It sticks to membrane and closes up the pores so less crud passes (kinda like a sand filter affect) & pearlite can be added to many things like concrete to lighten up weight when full density not needed. If memory serves right it is sand/silicate run thru a furnace type affair & it expands or like pop-corn. Good for fire retardent if you can find a fireproof bonding agent.( I have purchased a large bag at garden supply, maybe they use as filler in pots)
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