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Thread: Getting to know my pool: What are these things for anyway?

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    Getting to know my pool: What are these things for anyway?

    I have a few questions about the design and purpose of some components of my pool.
    Would it be ok to ask here for opinions as to why certain 'things' exist?

    Here's a starter:
    I already have a huge pleated cloth filter - but - at the output end of the filter - is another 'thing'.

    What is the purpose of this Aquatech AQTCG35 29135Q filter-after-the-filter?
    picture relocated due to captions

    I removed the plastic cartridge, and it's as light as a feather.
    picture relocated due to captions

    Any idea what this filter-after-the-filter actually does?
    Silicon Valley, 38,500 gallons in-ground plaster; Sta-Rite System 3 Model S8M150, 259 sqft cartridge 25022-0203S + 191 sqft cartridge #25021-0202S = 450 sqft filter@0.28gpm/sqft = 125 gpm@50psi max. Three 220v Sta-Rite Max-e-Glas II pumps {AO Smith QC1102 1.0x1.65SF for filter + cleaner; SQ1152 1.5x1.47SF for spa jets; square 48Y flange}. 13 Fafco 12'x4' professionally installed "Revolution" solar heating panels + Raypak RP2100 P-R 405A-EP LPG 399,000/hour heater + Compool Lx3600 controller + Infinity 4000 automatic pool cover (120v 3/4 HP motor); both skimmers are NOT filtered & serve only as intake for 9-port water valves (aka cleaner heads) controlling fifteen Paramount PCC2000 3" self-cleaning jets with the optional Debris Containment Canister.

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    Re: Getting to know my pool: What are these things for anywa

    Another question is why there is a 'faucet' (ball valve) attached to the output of my filter pump?
    picture relocated due to captions

    If I open the ball valve, water spills onto the ground.
    picture relocated due to captions
    Q: What is the purpose of having a faucet on the outlet of my filter pump?
    Silicon Valley, 38,500 gallons in-ground plaster; Sta-Rite System 3 Model S8M150, 259 sqft cartridge 25022-0203S + 191 sqft cartridge #25021-0202S = 450 sqft filter@0.28gpm/sqft = 125 gpm@50psi max. Three 220v Sta-Rite Max-e-Glas II pumps {AO Smith QC1102 1.0x1.65SF for filter + cleaner; SQ1152 1.5x1.47SF for spa jets; square 48Y flange}. 13 Fafco 12'x4' professionally installed "Revolution" solar heating panels + Raypak RP2100 P-R 405A-EP LPG 399,000/hour heater + Compool Lx3600 controller + Infinity 4000 automatic pool cover (120v 3/4 HP motor); both skimmers are NOT filtered & serve only as intake for 9-port water valves (aka cleaner heads) controlling fifteen Paramount PCC2000 3" self-cleaning jets with the optional Debris Containment Canister.

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    chiefwej's Avatar
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    Re: Getting to know my pool: What are these things for anywa

    The Nature2 "purifier" cartridge is not something you want. I adds metal to the pool. Having a hose bib after the filter can be useful. I have one and can use it to drain some water from the pool while the pump is running and have also used it when the pump was air locked.
    chiefwej
    Tucson, AZ
    16x36 rectangular (19k) Pebble Tec play pool/spa, Pentair Intelliflo VS 011018, Super II 2hp (spa), Aqua Rite T-15 SWG, Pro Grid 60 DE, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

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    Re: Getting to know my pool: What are these things for anywa

    The hosebib on your plumbing is there if you want to attach a hose to it and run it to a drain in order to drain water from your pool. Some cartridge filter setups have this feature because you cant drain the pool by sending water to waste like you can with a sand filter or a DE filter. I never use mine. It is VERY slow to drain this way and is much easier to just rent a pump for that purpose, should you ever need to do so.

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    Re: Getting to know my pool: What are these things for anywa

    Quote Originally Posted by chiefwej
    The Nature2 "purifier" cartridge is not something you want. I adds metal to the pool.
    Thank you for the information.

    When I googled, I found very little by way of technical details (so it's hard to figure out 'what' it does or doesn't do).
    Here is a brochure which says:
    • Nature2 is an exclusive patented mineral technology† that destroys bacteria
    • Reduces chlorine use to just 0.5 ppm. Lower chlorine levels help keep the pool pH balanced.
    • Nature2 technology consists of the minerals silver and copper.

    This ad says the following:
    • Each ($100) cartridge lasts up to 6 months
    • Drastically reduces chlorine usage
    • Eliminates red eyes, foul odors and skin irritation
    • Kills algae and bacteria

    The $100 filter I have is empty plastic. The brochure above says it's 10 pounds - so there must have been a 'chemical' inside at one time when the $300 unit was installed.

    Apparently these companies make the $100 replacement filter (which is replaced twice a year).
    Nature2 N2CG35, Claritec CRG35, Vision CG35, Eco Spring CEG35, White River CWG35, Clear Vision CXG35, VisipureCMG35, Aquatech AQTCG35
    Note: The '35' is merely the size of the pool (35K gallons).

    Given this quote in the brochure about 'private' labeling, I suspect the unit is more about marketing to the masses than about clarifying water:
    "Use the Nature2 G replacement cartridge orany G cartridge privately labeled as the following: Claritec, Vision, Clear Vision, Aquatech, Ecospring, White River, Visipure, Hawaiian, California or Fafco."

    Googling for how it can possibly work, I find this blurb:
    "How does Nature2 work?
    Water flows through the Nature2 Professional Pool Purifier which contains a layer of minerals which traps bacteria
    ."

    Hmmm...

    This blurb states the flow rate:
    • Capacity: up to 45,000 gals. Dimensions: 20"x11.5"x11.5" Ports: 1.5" FPT or 2" Slip Weight: 11lbs.
    • Run time: six hours minimum
    • Circulation system flow rate: 25-120 gpm (inline)
    • Cartridge flow rate: 10-18 gpm (internal bypass)
    • Cartridge selection: (three sizes available) 10,000 - 25,000 gals. 25,000 - 30,000 gals. 35,000 - 45,000 gals.
    • Cartridge dimensions: 13.75"x4.63"
    • Installation: after filter, before or after heater, and always before any chemical dispenser

    Given I probably don't even 'want' this thing:
    Q: Do you think leaving the unit bolted in (without the cartridge) is causing any flow restrictions?
    Q: Would you leave it in place (without the filter as it is now) or remove it?
    Silicon Valley, 38,500 gallons in-ground plaster; Sta-Rite System 3 Model S8M150, 259 sqft cartridge 25022-0203S + 191 sqft cartridge #25021-0202S = 450 sqft filter@0.28gpm/sqft = 125 gpm@50psi max. Three 220v Sta-Rite Max-e-Glas II pumps {AO Smith QC1102 1.0x1.65SF for filter + cleaner; SQ1152 1.5x1.47SF for spa jets; square 48Y flange}. 13 Fafco 12'x4' professionally installed "Revolution" solar heating panels + Raypak RP2100 P-R 405A-EP LPG 399,000/hour heater + Compool Lx3600 controller + Infinity 4000 automatic pool cover (120v 3/4 HP motor); both skimmers are NOT filtered & serve only as intake for 9-port water valves (aka cleaner heads) controlling fifteen Paramount PCC2000 3" self-cleaning jets with the optional Debris Containment Canister.

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    Re: Getting to know my pool: What are these things for anywa

    It contains minerals in bead form, as the cartridge is used the minerals dissolve into the pool, I use one and i never had had an issue in the 4 years i had it, it does not replace chlorine i do not keep my chlorine levels as low as they say you can.
    Most people dont like them, it works for thats all i can say about it.
    15ft round above ground pool (6600 gallons)
    Sand filter
    Jandy gas heater
    Intermatic timer

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    Re: Getting to know my pool: What are these things for anywa

    Quote Originally Posted by 257WbyMag
    The hosebib on your plumbing is there if you want to attach a hose to it and run it to a drain in order to drain water from your pool.
    Thanks for clarifying 'what' that hose bib was for!

    I'd guess it will only drain about half (roughly) the pool given the pump is about five feet below the water line.

    But it's good to know what it's there for in case I ever want to use it.
    Silicon Valley, 38,500 gallons in-ground plaster; Sta-Rite System 3 Model S8M150, 259 sqft cartridge 25022-0203S + 191 sqft cartridge #25021-0202S = 450 sqft filter@0.28gpm/sqft = 125 gpm@50psi max. Three 220v Sta-Rite Max-e-Glas II pumps {AO Smith QC1102 1.0x1.65SF for filter + cleaner; SQ1152 1.5x1.47SF for spa jets; square 48Y flange}. 13 Fafco 12'x4' professionally installed "Revolution" solar heating panels + Raypak RP2100 P-R 405A-EP LPG 399,000/hour heater + Compool Lx3600 controller + Infinity 4000 automatic pool cover (120v 3/4 HP motor); both skimmers are NOT filtered & serve only as intake for 9-port water valves (aka cleaner heads) controlling fifteen Paramount PCC2000 3" self-cleaning jets with the optional Debris Containment Canister.

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    Mod Squad jblizzle's Avatar
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    Re: Getting to know my pool: What are these things for anywa

    The hose bib could also be used for taking water sample or even aerating the pool by running a hose back to the pool.

    Posted with Tapatalk ... sorry if I sound short ... hate typing on phone
    Jason, TFP Moderator
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    In the Industry

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    Re: Getting to know my pool: What are these things for anywa

    You could also use the bib to run a leaf gulper without adding water to the pool.
    Science and Math Teacher
    Owner - SPS - part time pool biz
    18x36 IG Vinyl, 23000 Gallons with Jacuzzi (the bane of my existance) pumpworks
    Polaris 280 w/ PB4 booster

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    Re: Getting to know my pool: What are these things for anywa

    Thanks for the hose bib advice.

    Next to the spa pump are two capped off small pipes sticking out of the ground.
    Do you have advice for me what purpose they might serve?
    picture relocated due to captions

    Also, up on the deck, there are two black junction boxes up in the air, which I presume are for the two underwater pool lights.
    There's a GFCI, which I know is connected to the pool light (because when it trips, which it does frequently, the pool lights go off).

    But what is that plastic pipe, right next to the pool light GFCI, which appears to be an air pipe.
    picture relocated due to captions

    Is the 'air pipe' also for the pool lights?
    Silicon Valley, 38,500 gallons in-ground plaster; Sta-Rite System 3 Model S8M150, 259 sqft cartridge 25022-0203S + 191 sqft cartridge #25021-0202S = 450 sqft filter@0.28gpm/sqft = 125 gpm@50psi max. Three 220v Sta-Rite Max-e-Glas II pumps {AO Smith QC1102 1.0x1.65SF for filter + cleaner; SQ1152 1.5x1.47SF for spa jets; square 48Y flange}. 13 Fafco 12'x4' professionally installed "Revolution" solar heating panels + Raypak RP2100 P-R 405A-EP LPG 399,000/hour heater + Compool Lx3600 controller + Infinity 4000 automatic pool cover (120v 3/4 HP motor); both skimmers are NOT filtered & serve only as intake for 9-port water valves (aka cleaner heads) controlling fifteen Paramount PCC2000 3" self-cleaning jets with the optional Debris Containment Canister.

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