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Thread: Polaris 380 need dedicated intake and return lines?

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    Polaris 380 need dedicated intake and return lines?

    I have a Polaris 380 with dedicated line connection in pool installed. Having unrelated plumbing problems and pool guy said I need to run a dedicated line for the Polaris to get water and not be 'T''d off the main plubming. I don't see anything about this anywhere. Is he right? Thanks.
    'Mexico' Mike

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    UnderWaterVanya's Avatar
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    Re: Polaris 380 need dedicated intake and return lines?

    I have a 380. Water source is a T off the main return flow. I wonder if putting a dedicated suction would allow you to run it adequately without running the main pump. I also wonder if you could rig a bypass suction that went from just before the main pump to the booster with a check valve to give the same effect.

    In any case, the normal way seems to be to T off of returns prior to chlorine feeders and swgs for booster pump's suction side feed.


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    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    bigfunky's Avatar
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    Re: Polaris 380 need dedicated intake and return lines?

    I just had my pool built and I have a 380 with a dedicated line. All the returns and skimmers are dedicated as well.
    26,000 gallon gunite IGP with 50 sq ft Spa, Jandy VS FloPro 2hp Pump, Jandy DEV48 Filter, Jandy AquaPure SWG, Jandy AquaLink PDA-PS6 Controller, RayPak R406A Heater, Polaris 380 Cleaner, completed April 2013

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    Re: Polaris 380 need dedicated intake and return lines?

    The Polaris booster pumps are not self priming; meaning that, unless the booster is below the water level of the pool, it won't prime and will consequently run dry (not a good thing).

    This is why the supply to the booster is typically plumbed into the pressure (return) side of the main pump via a "T".
    In the industry, CSP (Certified Service Professional) by the NSPI and it's successor the APSP. My company services over 600 pools every year. I think the practices regularly espoused on this forum (especially the BBB method) are outstanding; however my comments will be often oriented towards the goal of getting it done, and getting it done right now!

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    UnderWaterVanya's Avatar
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    Re: Polaris 380 need dedicated intake and return lines?

    Quote Originally Posted by bigfunky
    I just had my pool built and I have a 380 with a dedicated line. All the returns and skimmers are dedicated as well.
    I have a dedicated return, do you mean you have a dedicated suction also?

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    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    UnderWaterVanya's Avatar
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    Re: Polaris 380 need dedicated intake and return lines?

    Quote Originally Posted by Qwaxalot
    The Polaris booster pumps are not self priming; meaning that, unless the booster is below the water level of the pool, it won't prime and will consequently run dry (not a good thing).

    This is why the supply to the booster is typically plumbed into the pressure (return) side of the main pump via a "T".
    Recently my father-in-law turned on the booster without turning on the main pump... Days before I found this. No damage and no issues. Mine is plumbed as you describe.

    Sent via Tapatalk...
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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    Re: Polaris 380 need dedicated intake and return lines?

    Thank you all so much. You really set my mind at ease in telling him no. I think he is just not familiar with the 380 and wanted to eliminate the booster pump. Since I am just learning things was afraid to disagree, but it didn't make sense to me. I truly appreciate this forum and hope eventurally to contribute when I finally have some knowledge. Oh yeah, and will become a supporting member, too. Need to fill out my profile now that I have a pool - in need of a rehab.
    'Mexico' Mike

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    UnderWaterVanya's Avatar
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    Re: Polaris 380 need dedicated intake and return lines?

    Quote Originally Posted by Mexicomike
    Thank you all so much. You really set my mind at ease in telling him no. I think he is just not familiar with the 380 and wanted to eliminate the booster pump.
    I did not realize he tried to get rid of the booster. The 360 will work without a booster, but not the 380.
    Inlaws Pool Boy since June 14th 2012, Pool built ~ 2003, In-Ground, 16'x32'
    13500 gal, Vinyl Liner, Fiberglass Slide, TF-100 Test Kit, Hayward 210T
    sand filter, A.O. Smith 1.5HP main pump motor (C48L2N134C1),
    Hayward SuperPump (model ?), Polaris 380 & PB4 Booster Pump

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