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Thread: Cartridge filter quest...

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    Cartridge filter quest...

    I have a Black Diamond 90sq ft cartridge filter from American pool sales here's the prob:::

    To clean my cartridge:

    I turned pump OFF
    Closed off the intakes from the pool
    Released to air valve on top of filter
    Unscrewed top ring to get at the cartridge
    Removed cartridge and cleaned ...no prob

    Now water level is about 2inches from top of opened filter canister.
    I put the cleaned filter back in ,Screwed the top cap back on til it lock clicked
    With the top back on and water valves open, i unscrew the little air valve til water comes out to prime.
    BUT when i prime the filter and fill the whole canister i get drips around the locking ring that keeps the top on.
    When i keep the water level just under the very top of the cartridge no leaks......

    Should the water level in the filter be just under the top of the cartridge?? or should the whole filter canister be filled ??
    Pressure is at 10psi , which its been all summer
    15ft Round, Above Ground , Rheem 106K Heater , Black Diamond 90 Cartridge Filter, Pool Frog(disconnected) ,TF-100, City of Chicagos finest H20

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    Mod Squad jblizzle's Avatar
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    Re: Cartridge filter quest...

    The entire filter should be filled. If you leave any air in the filter, it will get compressed and push the water backward through the filter when the pump shuts off.

    Did you adequately lube up the seal between the halves of the filter?
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: Cartridge filter quest...

    Quote Originally Posted by jblizzle
    The entire filter should be filled. If you leave any air in the filter, it will get compressed and push the water backward through the filter when the pump shuts off.

    Did you adequately lube up the seal between the halves of the filter?
    Just an FYI. Not all cartridge filters are supposed to have lube applied to that seal. The Pentair manual explicitly advises against it. I don;t have the manual for the Black Diamond 90 Cartridge Filter but I would advise checking the cleaning and reinstallation instructions before lubricating the seal.
    29,700 Gallon Vinyl Roman End, Sta-Rite Max-Therm-400HD gas heater, Sta-Rite S7M120 cartridge filter, Pool Pilot DIG-220 SWG

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    Mod Squad jblizzle's Avatar
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    Re: Cartridge filter quest...

    Interesting ... I can not really imagine why, unless you use the wrong kind ... or maybe it is more of a gasket than an o-ring that I am used to dealing with.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
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    Re: Cartridge filter quest...

    Yep when i fully prime the entire canister i get a drip around the locking cap, theres no way to tighten it because it snap locks... Should i prime using the air release valve when the pump is on or off??
    15ft Round, Above Ground , Rheem 106K Heater , Black Diamond 90 Cartridge Filter, Pool Frog(disconnected) ,TF-100, City of Chicagos finest H20

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    Mod Squad Bama Rambler's Avatar
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    Re: Cartridge filter quest...

    Quote Originally Posted by bumpy1
    Just an FYI. Not all cartridge filters are supposed to have lube applied to that seal. The Pentair manual explicitly advises against it.
    Can you give us the model that says that? My sis has a Pentair cartridge filter and I've read the entire manual and didn't see any warning about not using lube on the seal.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Mod Squad jblizzle's Avatar
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    Re: Cartridge filter quest...

    Quote Originally Posted by Rynz
    Yep when i fully prime the entire canister i get a drip around the locking cap, theres no way to tighten it because it snap locks... Should i prime using the air release valve when the pump is on or off??
    Ah, I just check some pics and see there is a "screw top" and not a band or something holding it together. Is there a seal at the top? Maybe it is damaged or worn out.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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    Re: Cartridge filter quest...

    I think i got it .... For some reason while the pump is off and i prime it using the little air valve i get a drip... With the pump on i loosen the plastic screw , at first some air then water .. No drips..weird
    15ft Round, Above Ground , Rheem 106K Heater , Black Diamond 90 Cartridge Filter, Pool Frog(disconnected) ,TF-100, City of Chicagos finest H20

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    Re: Cartridge filter quest...

    Quote Originally Posted by Bama Rambler
    Quote Originally Posted by bumpy1
    Just an FYI. Not all cartridge filters are supposed to have lube applied to that seal. The Pentair manual explicitly advises against it.
    Can you give us the model that says that? My sis has a Pentair cartridge filter and I've read the entire manual and didn't see any warning about not using lube on the seal.

    Sta-Rite S7M120 cartridge filter (it's in my sig).

    http://www.pentairpool.com/pdfs/System3SMOM.pdf

    Page 5: "NOTICE: Be sure upper tank half contacts Cord Ring
    surface evenly and seal area is clean and free from dirt.
    Do not lubricate Cord Ring; lubricants may cause the
    Ring to swell."

    I was actually very surprised as well !
    29,700 Gallon Vinyl Roman End, Sta-Rite Max-Therm-400HD gas heater, Sta-Rite S7M120 cartridge filter, Pool Pilot DIG-220 SWG

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    Mod Squad Bama Rambler's Avatar
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    Re: Cartridge filter quest...

    Thanks, I'll remember that. I wonder what the cord ring is made of. It should be either EPDM or Viton. Either of those are ok with silicone lube.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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