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Thread: new filter recommendations

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    new filter recommendations

    currently have a pentair nautilus fns 48- about 15 years old
    pool is a approx 28K gallons
    starting to wear away plus has been leaking from the bleeder screw at various time.
    I guess right now it works but needs a bleeder screw, o-ring and a pressure gauge (original markings are barely visible)

    what filter would anyone recommend? should I just fix the bleeder valve issues till the whole thing fails? I guess these will last 20 years?
    24K gal, plaster, concrete decking, cantelivered coping, 20 years old, raised attached stone spa - 1 1/2 HP purex triton pump, 3 yr old 48 sq ft Pentair DE filter with multiport, Polaris 380 w/pump, 2 yr old Pentair mastertemp 400k heater - live in southeastern PA outside phila.

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    grizgoalie's Avatar
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    Apr 2012
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    Chesapeake VA
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    Re: new filter recommendations

    I am no expert in the field of pool equipment. But what I have done is found out my old DE filter is obsolete. I found this out when I looked for new elemets for the old ones that had holes worn in it. Lucky for me I did find the loose parts to replace the insides of my filter for half the cost of a new one.

    In my opinion look and see what makes sense to you. Is your current system still supported and are parts readily available?
    Were you happy with your old filters performance? If not then maybe a change is in the works for you.

    My two cents worth.
    17K In Ground, Vinyl (a couple of droops and no elastisity ... great)
    Hayward 1 HP pump & DE 4800 Filter (New matrix on an obsolete unit)
    old auto pool cleaner and dead pump for it (New Polaris and booster on the way)

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    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    37,879

    Re: new filter recommendations

    With appropriate parts replacement you can probably keep that filter working for some time yet. On the other hand having a new filter could reduce the amount of maintenance you need to do and improve the overall efficiency of your system. Mostly it is a question of how you feel about spending money more than a question we can answer for you.

    If you do go with a new filter, I suggest getting something significantly larger than what you have now. Larger filters can go longer between backwashes/cleanings and improve system efficiency.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: new filter recommendations

    have a steady small leak out of the middle of the filter - not major but equipment pad is wet whenever the pump runs and I like everything bone dry..... I assume replacing the o-ring will resolve - its about a $40 part
    the band tighteners are all the way tight - always use a very reasonable single owner operator for all pool work - but I'm thinking for this I should take it apart and replace the o-ring myself.
    any reason replacing the o-ring wouldn't resolve?
    24K gal, plaster, concrete decking, cantelivered coping, 20 years old, raised attached stone spa - 1 1/2 HP purex triton pump, 3 yr old 48 sq ft Pentair DE filter with multiport, Polaris 380 w/pump, 2 yr old Pentair mastertemp 400k heater - live in southeastern PA outside phila.

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    Mod Squad Bama Rambler's Avatar
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    Jun 2009
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    SouthWest Alabama
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    22,347

    Re: new filter recommendations

    I can't think of anything else that would cause the leak. Lube it good when putting it back together.
    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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