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Thread: lubricants for threads and O- Rings

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    Smile lubricants for threads and O- Rings

    Hello,

    This is a basic question but i'm going in circles looking online for the answer to this.. My new Intex Sand Filter tells me to coat all threads with Petroleum Jelly.. I've read elsewhere not to use that especially near rubber rings.. I picked up a tube of Silicone Lubricant meant for pool equipment today.. but in further looking I saw someone recommend a Teflon based lube which is silicone free..

    My question is, what is the purpose of using lube on the threads? to make it easier to get off later? and which should I use on my threads and rings during new pump install? i've seen a pool guy use a silicone spray on an O-ring but as you can tell i'm highly confused and just want what is best for this new pump.. do I coat just where the ring is or do up all the threads? and with what product?

    Scott
    Intex 18' x 48" above ground
    Intex 2650gph sand filter
    Intex SWG/ Ozone generator

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    Re: lubricants for threads and O- Rings

    I usually use it to make it easier to get off and it also helps to keep the plastic threads from hurting the O ring, just had to put grease on my Nature 2 o ring, it had a leak and now the leaks gone once i lubed it!

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    JasonLion's Avatar
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    Re: lubricants for threads and O- Rings

    Any silicone or teflon based plumbers lubricant is fine.

    The lubricant helps make sure that the threads go all the way together and don't bind up at some earlier point before the connection has sealed. The lubricant also helps insure that you can get the connection apart again later. And finally, the lubricant helps seal any tiny imperfections in the connection, so there aren't any leaks. The same applies to o-rings, they need lubricant to be able to move into the ideal position and to seal any remaining slight imperfections.

    Petroleum jelly would work in the short run, but in the long run it breaks down natural rubber products, forcing you to replace o-rings more frequently.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: lubricants for threads and O- Rings

    which ingredient based lube do you recommend? the three choices that i've seen are
    1. petroleum jelly (though recommended in the manual is discouraged by many i've come across)..
    2. silicone based lube, or
    3. Teflon based lube.

    it's just confusing because they mention lubing the 'threads'.. but no mention of greasing the O-Rings directly..

    *edit* I just saw Jason's reply above..
    Intex 18' x 48" above ground
    Intex 2650gph sand filter
    Intex SWG/ Ozone generator

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    Re: lubricants for threads and O- Rings

    I've read in another thread to use silicon based not Teflon cuz it had a tendency to gunk up. I don't know that personally but I bought magic lube II which is silicon based. It works great on my pump basket o-ring. I found a good deal on Amazon for a 2 pack. Received it in 2 days.
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
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    Re: lubricants for threads and O- Rings

    I think the Teflon based lube is a misnomer. Teflon is a plastic. It's available in a very fine powder and often mixed into greases and lubricants for better performance. The base material of the lubricant can be petroleum based or silicone based or some other synthetic base. I could see someone calling a lubricant "silicone based with Teflon" or "petroleum based with Teflon" but "Teflon based" doesn't make sense. Is it pretzels with salt or salt with pretzels?

    My preference for pool use would be silicone first, "whatever" with teflon second and petroleum jelly last.
    21K gal 16' x 40' in-ground pool built 1959, old school with Jacuzzi bronze pump, American Products 24" Sand Filter & Americana Multiport valve, Jandy Lite2 millivolt heater, Coverstar cover, and classic Kreepy Krauly.

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    Re: lubricants for threads and O- Rings

    There are a number of lubricants in the Teflon family, often called PTFE, which are gells at room temperature. Aladdin Magic Lube is a very common brand which refers to it's self as PTFE based. Similar products from DuPont contain the same basic ingredients and refer to themselves as Teflon based.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: lubricants for threads and O- Rings

    Ok here is my spin on it, the debate between teflon vs silicone lubricants is sort of like the debate about cooking with butter vs cooking with olive oil, there may be some technical merit to one over another depending on the exact application, but for most part either will work. The petroleum jelly suggest in the intex manual probably comes from a management not an engineering opinion that they are cheap pools with cheap parts and the thought that most people will not go out and buy a $10 tube of the correct type of lubricant to use on a cheap sub $50 pump. So if they are going to ignore the directions anyway go ahead and tell them the best option (even if it is a poor one) out of the "household" products they may already own.


    Ike

    p.s. one note on o-ring lubricants, most people use WAY TOO MUCH, a tiny amount evenly applied to the o-ring is all you need. A small 1 Oz container if applied correctly should last the typical pool owner for many years.
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
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    Re: lubricants for threads and O- Rings

    I don't know about that last point, Ike The o ring on my filter is HUGE!!! 1 Oz may only do that a couple times (although granted you should not need to do it often).

    I am switching to silicone as soon as the Teflon stuff I got at the pool store runs out ... we will see what I think in a year.
    Jason, TFP Moderator
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    Re: lubricants for threads and O- Rings

    I have found silicone to be a better lubricant than Teflon.

    Magic Lube II or Boss 820 are good choices.

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    Re: lubricants for threads and O- Rings

    Quote Originally Posted by Isaac-1 View Post
    p.s. one note on o-ring lubricants, most people use WAY TOO MUCH, a tiny amount evenly applied to the o-ring is all you need. A small 1 Oz container if applied correctly should last the typical pool owner for many years.
    Agree. The grease should just turn the surface of the oring a shiny dark black but if you see streaks of grease thickness, you're just wasting it. Doesn't really hurt to use more but it's unnecessary.
    21K gal 16' x 40' in-ground pool built 1959, old school with Jacuzzi bronze pump, American Products 24" Sand Filter & Americana Multiport valve, Jandy Lite2 millivolt heater, Coverstar cover, and classic Kreepy Krauly.

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    Re: lubricants for threads and O- Rings

    So far, I've only used it on the small o-rings on my swg cell connections. Next time I backwash, I'll be applying on my pump basket o-ring.
    Here's a link to the thread I used as my reference to my answer.

    http://www.troublefreepool.com/threa...al-lubrication
    Pool size: 24000gal inground Vinyl-Taylor k-2006 and k-1766 test kits and-speed stir
    Intermatic P1353ME digital timer w/freeze sensor
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    Polaris 280 vacuum/Polaris PB4-60 boost pump
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    Re: lubricants for threads and O- Rings

    Question for you guys. At the pump waste basket, the lid labeled "Do not over tighten". I noticed while the pump is running, water doesn't come out, but the second the pump stops a little water comes out for a second or so. Is this normal?

    Thanks,
    TT

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    Mod Squad jblizzle's Avatar
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    Re: lubricants for threads and O- Rings

    My old pump used to do that too. But there was never any air sucked in when the pump is running.
    Jason, TFP Moderator
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    Re: lubricants for threads and O- Rings

    That little squirt of water when you shut down the pump is fairly common. I think its just the result of inertia. The water essentially hits a wall when the pump stops and the pressure in the pump basket goes from negative to positive. I see it all the time, especially on Super Pumps.

    I just want to add a little something someone told me the other day to the discussion about lubricants. I was told that this person was using the same lubricant they use in ice cream parlors. Apparently there are quite a few seals and o-rings in the ice cream machines, and they get a big industrial sized tube for way less money than you would pay for a tiny tube of "pool lubricant" at a pool store. I'm not sure where to find ice cream machine lubricant, but apparently it works for pools and is cheaper.
    TreeFiter

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    gtemkin's Avatar
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    Re: lubricants for threads and O- Rings

    If you have a filter that needs to have air bled from the top, that is a common symptom of trapped air, but since you're installing a new filter I'm guessing that might not be the case.

    In a filter that needs bleeding, air gets trapped in the top of the filter, the air gets compressed when the pump is running, and when you shut down the pump, that compressed air rapidly expands back to its normal size and pushes a shock wave of water ahead of it in all directions. Some of it goes the normal direction, towards the pool, but some of it goes backwards to the pump and basket area and that briefly lifts the lid and the result is the leak you see.

    It's not only trapped air that can do this. Equipment and piping can stretch like a ballon with the pump on and contract with the pump off to give the same effect although that's usually a very tiny amount, so the leak would also be tiny and nothing to worry about.

    If you have a way to bleed air from the top of the filter, try to do that right before shutting off the pump and see if it leaks less.
    21K gal 16' x 40' in-ground pool built 1959, old school with Jacuzzi bronze pump, American Products 24" Sand Filter & Americana Multiport valve, Jandy Lite2 millivolt heater, Coverstar cover, and classic Kreepy Krauly.

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    Re: lubricants for threads and O- Rings

    Quote Originally Posted by TreeFiter View Post
    I just want to add a little something someone told me the other day to the discussion about lubricants. I was told that this person was using the same lubricant they use in ice cream parlors. Apparently there are quite a few seals and o-rings in the ice cream machines, and they get a big industrial sized tube for way less money than you would pay for a tiny tube of "pool lubricant" at a pool store. I'm not sure where to find ice cream machine lubricant, but apparently it works for pools and is cheaper.
    Food safe greases are available from restaurant supply stores. I got a tube from a home brew supply store and use it on my keg connections. I think you're right that it would also work fine for pool o-ring lubrication.
    21K gal 16' x 40' in-ground pool built 1959, old school with Jacuzzi bronze pump, American Products 24" Sand Filter & Americana Multiport valve, Jandy Lite2 millivolt heater, Coverstar cover, and classic Kreepy Krauly.

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    Re: lubricants for threads and O- Rings

    This is what I have and plan to use. It's what my water filter recommends for o-ring lubrication:

    http://www.amazon.com/CRC-Grade-Sili.../dp/B00192D0TQ
    Intex 12'x24'x52"
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    Re: lubricants for threads and O- Rings

    The food grade spray lubricant will probably work, but tends to make a mess, you can get a squeeze tube from amazon for less and it will likely last much longer.

    This is what I bought last year when I misplaced my old tube

    http://www.amazon.com/Food-Grade-O-r...lubricant+food
    Indoor 20x40 35,000 gallon vinyl pool with 1.5 HP 2 speed Jandy FloPro pump, Hayward EC75 Perflex DE filter, 11 4x12 Techno-Solis solar panels w/ Aquasolar controller, Aquabot Turbo T Robot Cleaner. Also LMI metering chlorine dispenser pump and HotSpring Jetsetter
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    Re: lubricants for threads and O- Rings

    Mod please delete. Thanks.

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