Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 6 of 6

Thread: 2 speed motor replacement, help with parts/decisions

  1. Back To Top    #1

    Join Date
    Jun 2014
    Location
    FL
    Posts
    5

    Question 2 speed motor replacement, help with parts/decisions

    Hi,

    I have a Pentair Superflo 1hp (340038) pump, with a Clean and Clear CC100 filter. The pool is probably about 15,000gal. 1 1/2" pipes, a DIY solar on the ground, 1 skimmer, 2 returns. It was built in the early 60's and is screened in. This setup was installed (thrown together) somewhere around January this year (not by me). I'll be using a suction side cleaner in the skimmer, don't have one yet.
    I have an order in at Amazon for a Pentair 355003S that is a 1hp 2 speed, but I'm not sure it's ever going to ship... So I was just looking at other options. Looks like the Century 3/4hp B2980 would be a good (better?) option, and I'm guessing plenty for this pool? Would I need to change the impeller if I went with the B2980? If so, would I be better off just going with a B2982 1hp and not have to buy an impeller? Should I just stick with the Pentair direct replacement? Any other suggestions instead?

    TIA!

  2. Back To Top    #2
    mas985's Avatar
    Join Date
    May 2007
    Location
    Pleasanton, CA
    Posts
    11,478

    Re: 2 speed motor replacement, help with parts/decisions

    The 340038 Superflo is an up rated 1 HP so the B2980 is the correct size for the impeller.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

  3. Back To Top    #3
    bobodaclown's Avatar
    Join Date
    Apr 2011
    Location
    Lakeland, FL
    Posts
    2,351

    Re: 2 speed motor replacement, help with parts/decisions

    Here's a great deal on the B2980: http://www.lockewell.com/index.php?m...oducts_id=2248

    Make sure you order a new shaft seal. Do not reuse the old one.
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

  4. Back To Top    #4

    Join Date
    Jun 2014
    Location
    FL
    Posts
    5

    Re: 2 speed motor replacement, help with parts/decisions

    Thanks! I'll go with the B2980 then.

  5. Back To Top    #5
    svenpup's Avatar
    Join Date
    Nov 2009
    Location
    Sacramento, CA
    Posts
    835

    Re: 2 speed motor replacement, help with parts/decisions

    The B2980 is what I used and I am very happy with it. I took a lot of pics as I took the old one apart which was useful to make sure the new seal went together right.
    TFP Method Advanced Intermediate
    • 17,500 gallons - In Ground - Plaster - Hayward Swimclear 3020 Cartridge Filter - Sta-Rite Max-E-Glas Main Pump upgraded with A.O. Smith B2980 E-Plus New Centurion Two-Speed Motor - Polaris 280 Cleaner with Polaris PB4-60 Booster Pump - TightWatt2 Timer - Taylor K-2006 Test Kit - Pool Pilot Digital Nano SWCG

    Helpful Links: Pool School, BBB for Beginners, How to Shock (hint...it's a process not a product), Chlorine/CYA Chart, Jason's Pool Calculator

  6. Back To Top    #6

    Join Date
    Jun 2014
    Location
    FL
    Posts
    5

    Re: 2 speed motor replacement, help with parts/decisions

    If anyone happens to be looking for a B2980, I ordered one from Zorro http://www.zoro.com/i/G4482624/?category=6494 with 20% off code "VEGGIE" It was under $200. shipped!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •